MCQ Questions

MCQ Questions for Class 11 Physics Chapter 14 Oscillations with Answers

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Check the below NCERT MCQ Questions for Class 11 Physics Chapter 14 Oscillations with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Oscillations Class 11 Physics MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-11-physics-chapter-14/

Oscillations Class 11 MCQs Questions with Answers

MCQ On Oscillations Class 11 Chapter 14 Question 1.
In damped oscilation the directions of the restoring force and the resistive force
(a) are the same
(b) are opposite
(c) may be same or opposite
(d) have no relation with each other

Answer

Answer: (c) may be same or opposite

Oscillation MCQ With Solution Pdf Chapter 14 Class 11  Question 2.
The displacement y of a particle executing periodic motion is given by y = 4 cos² (t/2) sin (1000t). This expression may be considered to be a result of superposition of the following number of harmonic motions.
(a) two
(b) three
(c) four
(d) five

Answer

Answer: (b) three

Oscillation MCQ With Solution Chapter 14 Class 11 Question 3.
Spring is pulled down by 2 cm. What is amplitude of motion?
(a) 0 cm
(b) 6 cm
(c) 2 cm
(d) cm

Answer

Answer: (c) 2 cm

Oscillation MCQ Chapter 14 Class 11 Question 4.
One of the two clocks on the earth is controlled by a pendulum and other by a spring. If both the clocks are taken to the moon, then which clock will have the same time – period of the earth?
(a) spring clock
(b) pendulum clock
(c) both
(d) none

Answer

Answer: (a) spring clock

Oscillation MCQ Questions Chapter 14 Class 11 Question 5.
When a particle performing uniform circular motion of radius 10 cm undergoes the SHM, what will be its amplitude?
(a) 10 cm
(b) 5 cm
(c) 2.5 cm
(d) 20 cm

Answer

Answer: (a) 10 cm

Oscillation MCQ With Answers Chapter 14 Class 11 Question 6.
For a magnet of time period T magnetic moment is M, if the magnetic moment becomes one fourth of the initial value, then the time period of oscillation becomes.
(a) Half of initial value
(b) One fourth of initial value
(c) Double of initial value
(d) Four time initial value

Answer

Answer: (c) Double of initial value

Oscillation Class 11 MCQ Chapter 14  Question 7.
Time period of simple pendulum of length l and a place where acceleration due to gravity is g is T. what is the period of a simple pendulum of the same length at a place where the acceleration due to gravity is 1.029 is,
(a) T
(b) 1.02 T
(c) 0.99 T
(d) 1.01 T

Answer

Answer: (c) 0.99 T

MCQ On Oscillation Chapter 14 Class 11 Question 8.
In the case of forced oscillations, which of the following statements is not true?
(a) frequency equals that of external periodic force
(b) amplitude depends upon the damping coefficient
(c) amplitude tends to infinity at resonance
(d) higher the damping coefficient, lower is the amplitude at resonance

Answer

Answer: (c) amplitude tends to infinity at resonance

Question 9.
The motion of a particle executing simple harmonic motion is given by X = 0.01 sin 100p (t + 0.05), where X is in metres ant t in second. The time period in second is
(a) 0.001
(b) 0.02
(c) 0.1
(d) 0.2

Answer

Answer: (b) 0.02

Question 10.
In damped oscilation, the angular frequency of the oscillator
(a) keeps on decreasing
(b) keeps on increasing
(c) emains the same
(d) fluctuates

Answer

Answer: (c) emains the same

Question 11.
The acceleration of particle executing S.H.M. when it is at mean position is
(a) Infinite
(b) Varies
(c) Maximum
(d) Zero

Answer

Answer: (d) Zero

Question 12.
In SHM, graph of which of the following is a straight line?
(a) T.E. against displacement
(b) P.E. against displacement
(c) Acceleration against time
(d) Velocity against displacement

Answer

Answer: (a) T.E. against displacement

Question 13.
The period of thin magnet is 4 sec. if it is divided into two equal halves then the time period of each part will be
(a) 4 sec
(b) 1 sec
(c) 2 sec
(d) 8 sec

Answer

Answer: (c) 2 sec

Question 14.
If the length of seconds pendulum is increased by 2%, how may seconds it will lose per day?
(a) 3427 sec
(b) 3727 sec
(c) 3927 sec
(d) 864 sec

Answer

Answer: (d) 864 sec

Question 15.
Length of a simple pendulum executing simple harmonic motion is increased by 21%. The percentage increase in the time – period of the pendulum of increased length is
(a) 10%
(b) 1%
(c) 21%
(d) 42%

Answer

Answer: (a) 10%

Question 16.
If a simple harmonic oscillator has got a displacement of 0.02 m and acceleration equal to 2.0 ms-2 at any time, the angular frequency of the oscillator is equal to
(a) 10 rad s-1
(b) 1 rad s-1
(c) 100 rad s-1
(d) 1 rad s-1

Answer

Answer: (a) 10 rad s-1

Question 17.
The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hall near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time -period of the oscillation would
(a) first decrease and then increase to the original value
(b) first increase and then decrease to the original value
(c) increase towards a saturation value
(d) remain unchanged

Answer

Answer: (b) first increase and then decrease to the original value

Question 18.
The maximum velocity for particle in SHM is 0.16 m/s and maximum acceleration is 0.64 m/s2. The amplitude is
(a) 4 × 10-2 m
(b) 4 × 10-1 m
(c) 4 × 10 m
(d) 4 × 100 m

Answer

Answer: (a) 4 × 10-2 m

Question 19.
The period of a simple harmonic oscillator is 2 sec. The ratio of its maximum velocity and maximum acceleration is
(a) ∏
(b) 1/∏
(c) 2∏
(d) 4

Answer

Answer: (b) 1/∏

Question 20.
If a hole is bored along the diameter of the earth and a stone is dropped into the hole
(a) The stone reaches the centre of the earth and stops there
(b) The stone reaches the other side of the earth and stops there
(c) The stone executes simple harmonic motion about the centre of the earth
(d) The stone reaches the other side of the earth and escapes into space

Answer

Answer: (c) The stone executes simple harmonic motion about the centre of the earth

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 14 Oscillations with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Oscillations MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 11 Physics Chapter 13 Kinetic Theory with Answers

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Check the below NCERT MCQ Questions for Class 11 Physics Chapter 13 Kinetic Theory with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Kinetic Theory Class 11 Physics MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-11-physics-chapter-13/

Kinetic Theory Class 11 MCQs Questions with Answers

Kinetic Theory Of Gases Class 11 MCQ Chapter 13 Question 1.
Real gases show mark able deviation from that of ideal gas behavior at
(a) High temperature and low pressure
(b) Low temperature and high pressure
(c) High temperature and high pressure
(d) Low temperature and low pressure

Answer

Answer: (b) Low temperature and high pressure

MCQ On Kinetic Theory Of Gases Chapter 13 Question 2.
One mole of mono atomic gas (g = 5/3) is mixed with one mole of diatomic gas (g = 7/5) what will be the value of g for the mixture?
(a) 1.5
(b) 2.5
(c) 1.0
(d) 2

Answer

Answer: (a) 1.5

Kinetic Theory Of Gases MCQ Chapter 13 Question 3.
A room temperature the r.m.s. velocity of the molecules of a certain diatomic gas is found to be 1930 m/sec. the gas is
(a) H²
(b) F²
(c) O²
(d) Cl²

Answer

Answer: (a) H²

MCQ On Kinetic Theory Of Gases Class 11 Physics Chapter 13  Question 4.
The temperature at which the r.m.s. velocity of H² becomes escape velocity from the earth is,
(a) 10059°C
(b) 10059 K
(c) 10332°C
(d) 10332 K

Answer

Answer: (b) 10059 K

Kinetic Theory Of Gases MCQ With Answers Chapter 13  Question 5.
Moon has no atmosphere because
(a) It is far away form the surface of the earth
(b) Its surface temperature is 10°C
(c) The r.m.s. velocity of all the gas molecules is more then the escape velocity of the moons surface
(d) The escape velocity of the moons surface is more than the r.m.s velocity of all molecules

Answer

Answer: (c) The r.m.s. velocity of all the gas molecules is more then the escape velocity of the moons surface

Kinetic Theory Of Gases MCQs Chapter 13 Question 6.
At a certain temperature, hydrogen molecules have r.m.s. velocity of 3 km/s. what is the r.m.s velocity of the oxygen molecules at the same temperature?
(a) 0.25 km/s
(b) 0.5 km/s
(c) 0.75 km/s
(d) 6 km/s

Answer

Answer: (c) 0.75 km/s

Kinetic Theory Of Gases MCQ Pdf Download Chapter 13 Question 7.
Latent heat of ice is
(a) Less than external latent heat of fusion
(b) Equal to external latent heat of fusion
(c) More then external latent heat of fusion
(d) Twice the external latent heat of fusion

Answer

Answer: (c) More then external latent heat of fusion

Class 11 Physics Kinetic Theory Important Questions Chapter 13 Question 8.
Energy supplied to convert unit mass of substance from solid to liquid state at its melting point is called
(a) Latent heat of fusion
(b) Evaporation
(c) Solidification
(d) Latent heat of fission

Answer

Answer: (a) Latent heat of fusion

Kinetic Theory Of Gases Class 11 Questions And Answers Chapter 13 Question 9.
Which of the following is the unit of specific
(a) J kg/°c
(b) J/kg°c
(c) kg°c/J
(d) J kg/°c²

Answer

Answer: (b) J/kg°c

Question 10.
An ideal gas is that which can
(a) Be solidified
(b) Liquefied
(c) Not be liquefied
(d) Not be solidified

Answer

Answer: (c) Not be liquefied

Question 11.
One mole of an ideal gas requires 207 J heat to raise the temperature by 10 K, when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by 10K, then heat required is
(a) 96.6 J
(b) 124 J
(c) 198.8 J
(d) 215.4 J

Answer

Answer: (b) 124 J

Question 12.
If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mechanical equivalent of heat?
(a) 41.90 J/kcal
(b) 4190 J/cal
(c) 4.19 J/kcal
(d) 4.19 J/cal

Answer

Answer: (d) 4.19 J/cal

Question 13.
For a gas, the r.m.s. speed at 800K is
(a) Half the value at 200 K
(b) Double the value at 200 K
(c) Same as at 200 K
(d) Four times the value at 200 K

Answer

Answer: (b) Double the value at 200 K

Question 14.
The specific heat of a gas
(a) Has only one value
(b) Has two values CP and CV
(c) Is proportional to the square root of its absolute temperature
(d) Can have any value between 0 and infinity

Answer

Answer: (d) Can have any value between 0 and infinity

Question 15.
Average kinetic energy of molecules is
(a) Directly proportional to square root of temperature
(b) Directly proportional to absolute temperature
(c) Independent of absolute temperature
(d) Inversely proportional to absolute temperature

Answer

Answer: (b) Directly proportional to absolute temperature

Question 16.
The temperature of a gas is -68°C. to what temperature should it be heated, so that the r.m.s. velocity of the molecules be doubled?
(a) 357°C
(b) 457°C
(c) 547°C
(d) 820°C

Answer

Answer: (c) 547°C

Question 17.
Following gases are kept at the same temperature. Which gas possesses maximum r.m.s. speed?
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Carbon dioxide

Answer

Answer: (c) Hydrogen

Question 18.
Which of the following is the unit of specific
(a) J kg/°c
(b) J/kg°c
(c) kg°c/J
(d) J kg/°c²

Answer

Answer: (b) J/kg°c

Question 19.
According to kinetic theory of gases, at absolute zero of temperature
(a) Water freezes
(b) Liquid helium freezes
(c) Molecular motion stops
(d) Liquid hydrogen freezes

Answer

Answer: (c) Molecular motion stops

Question 20.
The average kinetic energy of the molecules of a gas at 27°C is 9 10-20 J. what is its average K.E. at 227°C?
(a) 5 10-20 J
(b) 10 10-20 J
(c) 15 10-20 J
(d) 20 10-20 J

Answer

Answer: (c) 15 10-20 J

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 13 Kinetic Theory with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Kinetic Theory MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 11 Physics Chapter 12 Thermodynamics with Answers

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Check the below NCERT MCQ Questions for Class 11 Physics Chapter 12 Thermodynamics with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Thermodynamics Class 11 Physics MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-11-physics-chapter-12/

Thermodynamics Class 11 MCQs Questions with Answers

MCQ On Thermodynamics Class 11 Physics Question 1.
Directions: The following question has four choices out of which ONLY ONE is correct.
A thermodynamical system is changed from state (P1, V1) to (P², V²) by two different processes, the quantity which will remain same is:
(a) ΔQ
(b) ΔW
(c) ΔQ + ΔW
(d) ΔQ – ΔW

Answer

Answer: (d) ΔQ – ΔW

Thermodynamics Physics Class 11 MCQ Question 2.
The temperatures of inside and outside of a refrigerator are 273 K and 303 K respectively. Assuming, that the refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be nearly:
(a) 10 J
(b) 20 J
(c) 30 J
(d) 50 J

Answer

Answer: (c) 30 J

Thermodynamics Physics Class 11 MCQ Pdf Question 3.
An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62°C, its efficiency is doubled. Temperature of the source is:
(a) 124°C
(b) 37°C
(c) 62°C
(d) 99°C

Answer

Answer: (d) 99°C

Thermodynamics Class 11 Physics MCQ Question 4.
A black body at a temperature of 227°C radiates heat at the rate of 20 cal m-2s-1. When its temperature rises to 727°C, the heat radiated will be
(a) 40 units
(b) 160 units
(c) 320 units
(d) 640 units

Answer

Answer: (c) 320 units

MCQ On Thermodynamics Physics Question 5.
Directions: The following question has four choices out of which ONLY ONE is correct.
Which of the following is incorrect regarding the first law of thermodynamics? A. It is not applicable to any cyclic process B. It is a restatement of the principle of conservation of energy C. It introduces the concept of the internal energy D. It introduces the concept of the entropy
(a) A and D
(b) B and C
(c) C and A
(d) A and B

Answer

Answer: (a) A and D

Thermodynamics Physics MCQs With Answers Pdf Question 6.
At a given volume and temperature, the pressure of a gas
(a) varies inversely as its mass
(b) varies inversely as the square of its mass
(c) varies linearly as its mass
(d) is independent of its mass

Answer

Answer: (c) varies linearly as its mass

Thermodynamics Class 11 MCQ Question 7.
Directions: The following question has four choices out of which ONLY ONE is correct.
In a thermodynamic process, pressure of a fixed mass of the gas is changed in such a manner that the gas molecules give out 30 J of heat. Also, 10 J of work is done on the gas. If the internal energy of the gas was 40 J, what will be the final internal energy?
(a) 20 J
(b) -20 J
(c) 80 J
(d) zero

Answer

Answer: (a) 20 J

Thermodynamics MCQ Class 11 Question 8.
The translational kinetic energy of gas molecules at temperature T for one mole of a gas is
(a) (3/2) RT
(b) (9/2) RT
(c) (1/3) RT
(d) (5/2) RT

Answer

Answer: (a) (3/2) RT

MCQ Of Thermodynamics Class 11 Question 9.
Which of the following parameters dose not characterize the thermodynamic state of matter?
(a) work
(b) volume
(c) pressure
(d) Temperature

Answer

Answer: (a) work

Class 11 Physics Thermodynamics Questions And Answers Pdf Question 10.
Directions: The following question has four choices out of which ONLY ONE is correct.
A Carnots engine works as a refrigerator between 250 K and 300 K. If it receives 750 calories of heat from the reservoir at the lower temperature, the amount of heat rejected at the higher temperature is __________.
(a) 900 cal
(b) 625 cal
(c) 750 cal
(d) 1000 cal

Answer

Answer: (a) 900 cal

Thermodynamics MCQs With Answers Pdf Class 11 Question 11.
The temperatures of inside and outside of a refrigerator are 273 K and 303 K respectively. Assuming, that the refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be nearly:
(a) 10 J
(b) 20 J
(c) 30 J
(d) 50 J

Answer

Answer: (c) 30 J

MCQs On Thermodynamics Physics Question 12.
Directions: The following question has four choices out of which ONLY ONE is correct.
In a thermodynamic process, pressure of a fixed mass of the gas is changed in such a manner that the gas molecules give out 30 J of heat. Also, 10 J of work is done on the gas. If the internal energy of the gas was 40 J, what will be the final internal energy?
(a) 20 J
(b) −20 J
(c) 80 J
(d) zero

Answer

Answer: (a) 20 J

Thermodynamics Class 11 MCQ Questions Question 13.
A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased, so as to increase its efficiency by 50% of original efficiency?
(a) 275 K
(b) 325 K
(c) 250 K
(d) 380 K

Answer

Answer: (c) 250 K

Thermodynamics Class 11 Physics Questions Question 14.
For a diatomic gas change in internal energy for a unit change in temperature for constant pressure and constant volume is U1 and U2 respectively. What is the ratio of U1 and U2?
(a) 5 : 3
(b) 3 : 5
(c) 1 : 1
(d) 5 : 7

Answer

Answer: (c) 1 : 1

Class 11 Physics Thermodynamics MCQ Question 15.
Which of the following parameters dose not characterize the thermodynamic state of matter?
(a) work
(b) volume
(c) pressure
(d) Temperature

Answer

Answer: (a) work

Question 16.
The translational kinetic energy of gas molecules at temperature T for one mole of a gas is
(a) (3/2) RT
(b) (9/2) RT
(c) (1/3) RT
(d) (5/2) RT

Answer

Answer: (a) (3/2) RT

Question 17.
Heat cannot by itself flow from a body at lower temperature to a body at higher temperature is a statement as a conseqence of
(a) conservation of mass
(b) conservation of momentum
(c) first law of thermodynamics
(d) second law of thermodynamics

Answer

Answer: (d) second law of thermodynamics

Question 18.
Which of the following statements is correct for any thermodynamic system?
(a) The internal energy changes in all processes.
(b) Internal energy and entropy are state functions.
(c) The change in entropy can never be zero.
(d) The work done in an adiabatic process is always zero.

Answer

Answer: (b) Internal energy and entropy are state functions.

Question 19.
During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio Cp/Cv for the gas is
(a) 2
(b) 3/2
(c) 4/3
(d) 5/3

Answer

Answer: (b) 3/2

Question 20.
Directions: The following question has four choices out of which ONLY ONE is correct.
A thermodynamical system is changed from state (P1, V1) to (P², V²) by two different processes, the quantity which will remain same is:
(a) ΔQ
(b) ΔW
(c) ΔQ + ΔW
(d) ΔQ – ΔW

Answer

Answer: (d) ΔQ – ΔW

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 12 Thermodynamics with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Thermodynamics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers

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Check the below NCERT MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Thermal Properties of Matter Class 11 Physics MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-11-physics-chapter-11/

Thermal Properties of Matter Class 11 MCQs Questions with Answers

Thermal Properties Of Matter MCQ Pdf Question 1.
Absorptive power of perfectly black body is
(a) Zero
(b) Infinity
(c) One
(d) Constant

Answer

Answer: (c) One

Thermal Properties Of Matter Class 11 MCQ Question 2.
A black body at hot temperature at 227°C radiates heat at a rate of 5 cal/cm²s. at a temperature of 727°C the rate of heat radiated per unit area will be
(a) 50 cal/cm²s
(b) 250 cal/cm²s
(c) 80 cal/cm²s
(d) 100 cal/cm²s

Answer

Answer: (c) 80 cal/cm²s

Thermal Properties Of Matter MCQ Question 3.
A body cools from 50°C to 46°C in 5 minutes and to 40°C in the next 10 minutes. The surrounding temperature is
(a) 30°C
(b) 28°C
(c) 36°C
(d) 32°C

Answer

Answer: (a) 30°C

MCQ On Thermal Properties Of Matter Class 11 Question 4.
For which of the following process, the thermal conduction is maximum?
(a) Combustion
(b) Radiation
(c) Convection
(d) Conduction

Answer

Answer: (b) Radiation

Thermal Properties Of Matter MCQs Question 5.
A bucket full of hot water is kept in a room and it cools from 75°C to 70°C in t1 minutes from 70°C to 65°C in t2 minutes and from 65°C to 60°C in t3 minutes; then
(a) t1 – t2 = t3
(b) t1 < t2 < t3
(c) t1 > t2 > t3
(d) t1 < t2 > t3

Answer

Answer: (b) t1 < t2 < t3

MCQ On Thermal Properties Of Matter Question 6.
The good absorber of heat are
(a) Non-emitter
(b) Poor-emitter
(c) Good-emitter
(d) Highly polished

Answer

Answer: (c) Good-emitter

MCQs On Thermal Properties Of Matter Question 7.
Two stars A and B radiate maximum energy at 3600°A and 3600°A respectively. Then the ratio of absolute temperatures of A and B is
(a) 256 : 81
(b) 81 : 256
(c) 3 : 4
(d) 4 : 3

Answer

Answer: (d) 4 : 3

Thermal Properties Of Matter Questions And Answers Pdf Question 8.
A person with dark skin as compared to a person with white skin will experience
(a) Less heat and less cold
(b) More heat and more cold
(c) More heat and less cold
(d) Less heat and more cold.

Answer

Answer: (b) More heat and more cold

MCQ Of Thermal Properties Of Matter Question 9.
A cup of tea cools from 80°C to 60°C in one minute. The ambient temperature is 30°C. in cooling from 60°C to 50°C, it will take.
(a) 50 sec
(b) 90 sec
(c) 60 sec
(d) 30 sec

Answer

Answer: (a) 50 sec

Physics Chapter 11 Heat MCQs Question 10.
The best ideal black body is
(a) Lamp of charcoal heated to high temperature
(b) Metal coated with a black dye
(c) Glass surface coated with coalter
(d) Hollow enclosure blackened inside and having a small hole

Answer

Answer: (d) Hollow enclosure blackened inside and having a small hole

Class 11 Physics Thermal Properties Of Matter MCQ Question 11.
The earth intercepts approximately one billionth of the power radiated by the sun. if the surface temperature of the sun were to drop by a factor of 2, the average radiant energy incident on earth per second would reduce by factor of
(a) 2
(b) 4
(c) 8
(d) 16

Answer

Answer: (d) 16

MCQ Questions For Class 11 Physics Chapter 11 Question 12.
The process of heat transfer in which heat is transferred with actual migration of medium particles is known as (AFMC-94)
(a) Conduction
(b) Convection
(c) Radiation
(d) Reflection

Answer

Answer: (b) Convection

Questions On Thermal Properties Of Matter Question 13.
Unit of Stefans constant is given by
(a) W/ m K²
(b) W/ m² K²
(c) W²/ m² K4
(d) W/ mK

Answer

Answer: (b) W/ m² K²

Class 11 Physics Chapter 11 MCQ Question 14.
A metal piece heated to T1°K. The temperature of the surrounding is T2°K. the heat in the surrounding due to radiation is proportional to
(a) (T14 – T24)
(b) (T1 – T2)4
(c) (T14 + T24)
(d) (T13 – T23)

Answer

Answer: (a) (T14 – T24)

Thermal Properties Of Matter Class 11 Extra Questions Question 15.
The earth receives at its surface radiation from the sun at the rate of 1400 W/m². the distance of the centre of the sun from the surface of the earth is 1.5 1011 m and the radius of the sun is 7.0 108 m. treating sun as a black body, it follows from the above data that its surface temperature is,
(a) 5801 K
(b) 106 K
(c) 50.1 K
(d) 2801 C

Answer

Answer: (a) 5801 K

Question 16.
A surface at temperature T0°K receives power P by radiation from a small sphere at temperature T >> T0 and at a distance d. if both T and d are doubled, the power received by surface will becomes approximately
(a) P
(b) 2p
(c) 4p
(d) 16p

Answer

Answer: (c) 4p

Question 17.
The temperature of a piece of metal is raised from 27°C to 51.2°C. the rate at which metal radiates energy increases nearly
(a) 1.36 times
(b) 2.36 times
(c) 3.36 times
(d) 4.36 times

Answer

Answer: (a) 1.36 times

Question 18.
Emissivity of perfectly black body is
(a) 1
(b) 2
(c) 5
(d) 0

Answer

Answer: (a) 1

Question 19.
The good absorber of heat are
(a) Non-emitter
(b) Poor-emitter
(c) Good-emitter
(d) Highly polished

Answer

Answer: (c) Good-emitter

Question 20.
Co-efficient of reflection, coefficient of absorption and coefficient transmission are related as
(a) a + r + 1 = 1
(b) a + r + t1 1
(c) a + r = -t
(d) a1 r + 1

Answer

Answer: (a) a + r + 1 = 1

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Thermal Properties of Matter MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

MCQ Questions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids with Answers

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Check the below NCERT MCQ Questions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Mechanical Properties of Fluids Class 11 Physics MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-11-physics-chapter-10/

Mechanical Properties of Fluids Class 11 MCQs Questions with Answers

Mechanical Properties Of Fluids Class 11 MCQ Question 1.
A number of small drops of mercury coalesce adiabatically to form a single drop. The temperature of drop
(a) Increases
(b) Is infinite
(c) Remains unchanged
(d) May decrease or increase depending upon size

Answer

Answer: (d) May decrease or increase depending upon size

Mechanical Properties Of Fluids MCQ Question 2.
Surface tension of a soap solution is 1.9 × 10-2N/m. work done in blowing a bubble of 2.0 cm diameter will be
(a) 7.6 × 10-6 p J
(b) 15.2 × 10-6 p J
(c) 1.9 × 10-6 p J
(d) 1 × 10-4 p J

Answer

Answer: (b) 15.2 × 10-6 p J

Mechanical Properties Of Fluids MCQ Pdf Question 3.
Plants get water through the roots because of
(a) Capillarity
(b) Viscosity
(c) Gravity
(d) Elasticity

Answer

Answer: (a) Capillarity

MCQ On Mechanical Properties Of Fluids Class 11 Question 4.
Choose the wrong statement from the following.
(a) Small droplets of a liquid are spherical due to surface tension
(b) Oil rises through the wick due to capillarity
(c) In drinking the cold drinks through a straw, we use the phenomenon of capillarity
(d) Gum is used to stick two surfaces. In this process we use the property of Adhesion

Answer

Answer: (c) In drinking the cold drinks through a straw, we use the phenomenon of capillarity

Class 11 Physics Chapter 10 MCQ Question 5.
The height of a liquid in a fine capillary tube
(a) Increases with an increase in the density of a liquid
(b) Decreases with a decrease in the diameter of the tube
(c) Decreases with an increase in the surface tension
(d) Increases as the effective value of acceleration due to gravity is decreased

Answer

Answer: (d) Increases as the effective value of acceleration due to gravity is decreased

MCQs On Mechanical Properties Of Fluids Question 6.
At critical temperature, the surface tension of a liquid
(a) Is zero
(b) Is infinity
(c) Is the same as that at any other temperature
(d) Can not be determined

Answer

Answer: (a) Is zero

Mechanical Properties Of Fluids MCQs Question 7.
A capillary tube when immersed vertically in a liquid records a rise of 3 cm. if the tube is immersed in the liquid at an angle of 60° with the vertical, then length of the liquid column along the tube will be
(a) 2 cm
(b) 3 cm
(c) 6 cm
(d) 9 cm

Answer

Answer: (c) 6 cm

MCQ On Mechanical Properties Of Fluids Class 12 Question 8.
When the angle of contact between a solid and a liquid is 90°, then
(a) Cohesive force > Adhesive force
(b) Cohesive force < Adhesive force
(c) Cohesive force = Adhesive force
(d) Cohesive force >> Adhesive force

Answer

Answer: (c) Cohesive force = Adhesive force

Mechanical Properties Of Fluids Class 12 MCQ Pdf Question 9.
Water rises up to a height of 5 cm in a capillary tube of radius 2 mm. what is the radius of the radius of the capillary tube if the water rises up to a height of 10 cm in another capillary?
(a) 4 mm
(b) 1 mm
(c) 3 mm
(d) 1 cm

Answer

Answer: (b) 1 mm

Mechanical Properties Of Fluid MCQ Question 10.
If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is
(a) Acute angle
(b) Obtuse angle
(c) 90°
(d) 0°

Answer

Answer: (d) 0°

Mechanical Properties Of Fluids MCQ With Answers Pdf Question 11.
Two soap bubbles have radii in the ratio of 4 : 3. What is the ratio of work done to below these bubbles?
(a) 4 : 3
(b) 16 : 9
(c) 09 : 16
(d) 3 : 4

Answer

Answer: (b) 16 : 9

MCQ Questions On Mechanical Properties Of Fluids Class 11 Question 12.
The height of water in a capillary tube of radius 2 cm is 4 cm. what should be the radius of capillary, if the water rises to 8 cm in tube?
(a) 1 cm
(b) 0.1 cm
(c) 2 cm
(d) 4 cm

Answer

Answer: (a) 1 cm

Class 11 Physics Mechanical Properties Of Fluids MCQ Question 13.
Water rises up to a height of 4 cm, in a capillary tube immersed vertically in water. What will be the length of water column in the capillary tube, if the tube is immersed in water, at an angle of 60° with the vertical?
(a) 4 cm
(b) 6 cm
(c) 8 cm
(d) 2 cm

Answer

Answer: (c) 8 cm

MCQ Questions For Class 11 Physics Chapter 10 Question 14.
The surface of water in contact with glass wall is
(a) Plane
(b) concave
(c) convex
(d) Both b and c

Answer

Answer: (b) concave

Mechanical Properties Of Fluids MCQ Pdf Download Question 15.
Pressure inside two soap bubbles is 1.01 and 1.02 atmospheres. ratio between their volume is
(a) 102 : 101
(b) (102)3 : (101)3
(c) 8 : 1
(d) 2 : 1

Answer

Answer: (c) 8 : 1

Mechanical Properties Of Fluids Class 12 MCQ Question 16.
One end of a towel dips into a bucket full of water and other end hangs over the bucket. It is found that after some time the towel becomes fully wet. It happens
(a) Because viscosity of eater is high
(b) Because of the capillary action of cotton threads
(c) Because of gravitational force
(d) Because of evaporation of water.

Answer

Answer: (b) Because of the capillary action of cotton threads

Mechanical Properties Of Fluids Class 11 Questions And Answers Pdf Question 17.
If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is
(a) Acute angle
(b) Obtuse angle
(c) 90°
(d) 0°

Answer

Answer: (d) 0°

Mechanical Properties Of Fluids Class 11 Important Questions Pdf Question 18.
Water rises up to a height h, in a capillary tube of radius r. the mass of the water lifted in the capillary tube is M. if the radius of the capillary tube is doubled, the mass of water that will rise in the capillary tube will be
(a) M
(b) 2M
(c) M/2
(d) 4M

Answer

Answer: (b) 2M

Question 19.
5 g of water rises in the bore of capillary tube when it is dipped in water. If the radius of bore capillary tube is doubled, the mass of water that rises in the capillary tube above the outside water level is
(a) 1.5 g
(b) 10 g
(c) 5 g
(d) 15 g

Answer

Answer: (b) 10 g

Question 20.
The height of a liquid in a fine capillary tube
(a) Increases with an increase in the density of a liquid
(b) Decreases with a decrease in the diameter of the tube
(c) Decreases with an increase in the surface tension
(d) Increases as the effective value of acceleration due to gravity is decreased

Answer

Answer: (d) Increases as the effective value of acceleration due to gravity is decreased

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Mechanical Properties of Fluids MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.