# Class 11 Physics MCQs Chapter Wise [Solved] with Answers

Welcome to our comprehensive guide on Class 11 Physics MCQs Chapter Wise. If you’re a student preparing for board exams, MDCAT tests, CAT tests, entry tests, or any other competitive exams, you’ve come to the right place. All these Physics MCQs, cover a wide range of multiple-choice questions (MCQs) of 1st Year Physics. Whether you’re looking to strengthen your conceptual understanding, these solved MCQs are helpful for your Physics test online preparation.

We have broadly covered Unit and Measurement MCQs, Gravitation MCQs, Work Energy and Power MCQs, Physical World MCQs, Thermodynamics MCQs, Kinematics MCQs, Scalars and Vectors MCQs, Force and Motion MCQs, Fluid Dynamics MCQs, Waves MCQs, Physical Optics MCQs, Oscillation MCQs, and Rotational and Circular Motion MCQs for your online test preparation.

### CHAPTER 10

We have completely covered all the MCQs (Multiple Choice Questions) of  Class 1st Year Physics.

1. Measurement MCQs
2. Vectors and Equilibrium MCQs
3. Forces and Motion MCQs
4. Work and Energy MCQs
5. Rotational and Circular Motion MCQs
6. Fluid Dynamics MCQs
7. Oscillation MCQs
8. Waves MCQs
9. Physical Optics MCQs
10. Thermodynamics MCQs

All these objective types of questions are important for Grade 11 students in their online exam preparation.

Class 11 Physics MCQs Chapter Wise

## CHAPTER 1

1: What is the radian measure between the arms of the watch at 5:00 p.m.?

2:     1°=__________

3: The metric prefix for 0.000001 is;

• (a)hector
• (b) micro
• (c) deka
• (d) nano

(b) micro

4: Which of the following is the correct way of writing units?
• (a) 71 Newton
• (b) 12 mµ s
• (c) 8 kg
• (d) 43 kgm-3

(d) 43 kgm-3

5: A student measures a distance several times. The readings lie between 49.8 cm and 50.2 cm.

This measurement is best recorded as;

•  (a)   94.8 ± 0.2 cm
• (b)   49.8± 0.4 cm
• (c)   50.0 ± 0.2 cm
• (d)   50.0 ± 0.4 cm

(c)   50.0 ± 0.2 cm

6: The percent uncertainty in the measurement of 3.76± 0.25 m is:

• (a)  4%
• (b)  6.6%
• (c)   25%
• (d)   376%

(b) 6.6%

7: The temperature of two bodies measured by a thermometer are t1=20°C ±0.5°C and t2=50°C ±0.5°C. The temperature difference and the error there in is:

• a) 30°C±0.0°C
• b) 30°C±0.5°C
• c) 30°C±1°C
• d) 30°C±1.5°C

c) 30°C±1°C

8: (5.0m±4.0%) x( 3.0s±3.3%)=_________

• a) 15.0ms± 13.2%
• b) 15.0ms±7.3%
• c) 15.0ms±0.7%
• d) 15.0ms±15.3%

b) 15.0ms±7.3%

9: (2.0m±2.0%)³=____________

• a)8.0m³±1.0%
• b) 8.0m³±2.0%
• c)8.0m³±4.0%
• d) 8.0m³±5.0%

d) 8.0m³±5.0%

10: The number of significant figures in the measurement of 0.00708600 cm is:

• (a)  3
• (b)   4
• (c)   6
• (d)   9

(b)4

## CHAPTER 2

11: How many significant figures does 1.362 + 25.2 have?

• (a)   2
• (b)   3
• (c)    5
• (d)    8

(c)5

12: Compute the result to the correct number of significant digits 1.513 m+ 27.3 m?

• (a)   29 m
• (b)  28.8 m
• (c)    28.81 m
• (d)   28.813 m

(b) 28.8 m

13: If 7.635 and 4.81 are two significant numbers. Their multiplication in significant digits is:

• (a)     72435
• (b)    36.724
• (c)    36.72
• (d)    36.7

(d) 36.7

14: The precision of the measurement of 385,000 km is:

• (a)   10 km
• (b)   100 km
• (c)   1000 km
• (d)   1000000 km

(c) 1000 km

15: [M°L°T°] are dimension of:

• a) Strain
• b) Reflexive index
• c) Mignification
• d) All of these

d) All of these

16: The dimensions of torque are:

• a) [MLT]
• b) [M²L²T]
• c) [ML²T-2]
• d) [ML²T²]

c) [ML2T-2

17: Two vectors lie with their tails at the same point. When the angle between them is increased by 2o°  their scalar product has the same magnitude but changes from positive to negative. The original angle between them was:

• (a) 0°
• (b) 60°
•  (c) 70°
• (d) 80°

(d) 80°

18: The minimum number of vectors of unequal magnitude required to produce a zero Resultant is:

• (a)   2
• (b)    3
• (c)    4
• (d)   5

(b) 3

19: If the resultant of two vectors, each of magnitude A is also a magnitude of A. The angle  between the two vectors will be:

• a) 30°
• b) 45°
• c) 60°
• d) 120°

d) 120°

20: The magnitude of vector A 2iˆ+jˆ+2kˆ is:

• a) 9
• b) 5
• c) 3
• d) 1

c) 3

## CHAPTER 3

21: When Fx=3 and F=5 N, the Fy =__________.

• a) 6N
• b) 4N
• c) 2N
• d) 0 N

b) 4N

22: A meter stick is supported by a knife edge at the 50 cm mark. Arif hangs masses of 0.40 and 0.60 kg from the 20 cm and 80 cm marks respectively. Where should Arif hang at a third mass of 0.30 kg to keep the stick balanced?

• (a) 20 cm
• (b)  70 cm
• (c)   30 cm
• (d)   25 cm

(a) 20 cm

23: If Ax=1.5 cm, Ay =-1.0 cm, into which quadrant do the  vector A point?

• a) I
• b) II
• c) III
• d) IV

d) IV

24: A.(A→ x B )=__________

• a) 0
• b) 1
• c) AB
• d) A²B

a) 0

25: Two forces of magnitude 20 N and 50 N act simultaneously on a body. Which one of the following forces cannot be a resultant of the two forces?

• (a) 20 N
• (b)  30 N
• (c)  40 N
• (d)  70 N

(a) 20 N

26: If the dot product of the two nonzero vectors A and B is zero then the magnitude of their cross product is———–

• (a) 0
• (b) 1
• (c)  AB
• (d) –AB

(c) AB

27: The sum of the magnitudes of two forces is 16 N. If the resultant force is 8 N and its direction is perpendicular to the minimum force then the forces are:

• (a)    6 N and 10 N
• (b)    8 N and 8 N
• (c)    4 N and 12 N
• (d)    2 N and 14 N

(a) 6 N and 10 N

28: For which angle the equation |A . B|=|A x B| is correct?

• a) 30°
• b) 45°
• c) 60°
• d) 90°

b) 45°

29: A ball is thrown vertically upwards at 19.6 m/s. For its complete trip (up and back down to the starting position) its average speed is:

• (a) 19.6  m/s
• (b) 9.8 m/s
• (c)  6.5 m/s
• (d)  4.9 m/s

(a) 19.6 m/s

30: If you throw a ball downward, then its acceleration immediately after leaving your hand,  assuming no air resistance, is:

• a) 9.8mS-2
• b) more than 9.8mS-2
• c) less than 9.8mS-2
• d) speed of throw is required

a) 9.8mS-2

## CHAPTER 4

31: The time rate of change of momentum gives:

•  (a)  force
• (b)    impulse
• (c)   acceleration
• (d)    power

(a) force

32: The area between the velocity-time graph is numerically equal to:

• (a)   velocity
• (b)   displacement
• (c)    acceleration
• (d)    time

(c) acceleration

33: If the slope of velocity- time graph gradually decreases, then the body is said to be moving with:

• (a)  positive acceleration
• (b)  negative acceleration
• (c)  uniform velocity
• (d)  zero acceleration

(b) negative acceleration

34: A 70 kg ball experiences a net force of 5 N. What will be its acceleration?

• a) 35ms-2
• b) 7ms-2
• c) 5ms-2
• d) 0.71ms-2

d) 0.71ms-2

35: S.I unit of impulse is:
• (a) Kg ms-2
• (b)     N s
• (c)     N /s
• (d)    N m

b) N s

36: A ball with an original momentum 4 kg x m/s  hits a wall and bounces straight back without losing any kinetic energy. The change in momentum of the ball is:

• a) 4Ns
• b) -4Ns
• c) 8Ns²
• d) -8Ns

c) 8Ns2

37: A body is travelling with a constant acceleration of 10ms-2. If S1 is the distance travelled in 1st second and S2 is the distance travelled in 2nd second, which of the following shows a correct relation between S1 and S2?

• a) S1 = S2
• b) S1 = 3S2
• c) S = 3S1
• d) 2S = 3S1

c) S2=3S1

38: During projectile motion, the horizontal component of velocity:

• (a) Changes with time
• (b)   becomes zero
• (c)   remains constant
• (d)  increases with time

(c) remain constant

39: A projectile is thrown horizontally from a 490 m high cliff with a velocity of 100 m/s. The time taken by the projectile to reach the ground is:

• (a)    2.5 s
• (b)    5 s
• (c)    7.5 s
• (d)     10 s

(d) 10 s

40: A projectile is launched at 45°  to the horizontal with an initial kinetic energy assuming air resistance to be negligible what will be the kinetic energy of the projectile when it reaches its highest point?

• (a) 0.50  E
• (b)   0.71  E
• (c)   0.70  E
• (d)   E

(c) 0.70 E

## CHAPTER 5

41: To improve the jumping record the long jumper should jump at an angle of:

• a) 30°
• b) 45°
• c) 90°
• d) 60°

b) 45°

42: The range of the projectile on a horizontal plane is the same for the following pair of angles:

• a) 43 and 47°
• b) 15° and 18°
• c) 20° and 80°
• d) 52° and 62°

a) 43° and 47°

43: You push a heavy crate down a ramp at a constant velocity. Only four forces act on the crate. Which force does the greatest magnitude of work on the crate?

• (a) The force of friction
• (b) The force of gravity
• (c) Normal force
• (d) The force you pushing

(d) The force you pushing

44: The force constant of a wire is K and that of another wire is 3K, when both wires are stretched through the same distance, if work done is W1 and W2, then:

• a) W1 = W2
• b) W2 = 9W1
• c) W1 = 3W2
• d) W2 = 3W1

d) W2 =3W1

45: Escape velocity on the surface of the earth is 11.2 km/s. If the mass of the earth increases to twice its value and the radius of the earth becomes half the escape velocity is:

• (a) 5.6 km/s
• (b)  11.2 km/s
• (c)  22.4 km/s
• (d)   33.6 km/s

(b) 11.2 km/s

46: An example of non conservative force is:

• (a) Frictional force
• (b)  electric force
• (c)  Gravitational force
• (d)  magnetic force

(a) Frictional force

47: When the speed of your car is doubled, by what factor does its kinetic energy increase?

• a) 2.2
• b) 2
• c) 4
• d) 8

c) 4

48: One horsepower is given by:

• (a) 746 W
• (b)  746 KW
• (c)  746 MW
• (d)   746 GW

(a) 746 W

49: Work is said to be negative when F and d are:

• a) Same direction
• b) Opposite direction
• c) Parallel
• d) Anti-parallel

b) Opposite direction

50: Two bodies of masses m1 and m2 have equal momentum, their kinetic energies E1 and E2 are in the ratio:

• a) m1/m2
• b) m1:m2
• c) m2:m1
• d) None of these

c) m2 : m1

## CHAPTER 6

51: The atmosphere is held to the earth by:

• (a) Winds
• (b)  Gravity
• (c)  Clouds
• (d)  The rotation of earth

(b) Gravity

52: If momentum is increased by 20%, then K.E increases by:

• a) 55%
• b) 44%
• c) 66%
• d) 77%

b) 44%

53: If the kinetic energy of a body becomes four times the initial value, then new momentum will:

• (a) Becomes twice its initial value
• (b)   become three times, its initial value
• (c)    becomes four times, its initial value
• (d)   remains constant

(a) Become twice its initial value

54: Two bodies with kinetic energies in the ratio of 4:1 are moving with equal linear momentum. The ratio of their masses is:

• a) 1:2
• b) 1:1
• c) 4:1
• d) 1:4

d) 1:4

55: A body of mass 5 kg is moving with a momentum of kg m/s. A force of 0.2 N acts on it In the direction of motion of the body for 10 seconds. The increase in its K. E is:

• a) 2.8J
• b) 3.2 J
• c) 3.8 J
• d) 4.4 J

d) 4.4 J

56: If force and displacement of a particle in the direction of force are doubled. Work would be:

• (a)   double
• (b)    4 times
• (c)     Half
• (d)   ¼ times

(a) double

57: The angular speed in radians/hours for the daily rotation of our earth is?

• a) 2π
• b) 4π
• c) π/6
• d) π/12

d) π/12

58: Linear acceleration a =rα when θ is:

• a) 0°
• b) 180°
• c) 360°
• d) 90°

d) 90°

59: Two resisters of 1 ohm are connected in parallel, the equivalent resistance is:

• a) 2Ω
• b) 1.5Ω
• c) 1Ω
• d) 0.5

d) 0.5

60: What is the moment of inertia of a sphere?

• a) MR²
• b) ½MR²
• c) 2/5 MR²
• d) ½M²R

(c) 2/5 MR2

## CHAPTER 7

61: A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a horizontal plane. It follows:

• (a) Linear momentum is constant
• (b)    velocity is constant
• (c)    It moves in a circular path
• (d)    particle move in a straight line

(c) It moves in a circular path

62: A body moving in a circular path with constant speed has:

• (a) Constant acceleration
• (b) Constant retardation
•  (c) Variable acceleration
• (d)  Variable speed and constant velocity

(c) Variable acceleration

63: Astronauts appear weightless in space because:

• (a) There is no gravity in space
• (b)   There is no floor pushing upwards on the
•  (c)  Satellite is freely falling
• (d)   There is no air in space

(c) Satellite is freely falling

64: Which one is constant for a satellite in orbit?

• (a) velocity
• (b)  K.E
• (c)   Angular momentum
• (d)   Potential energy

(b) K.E

65: If the earth suddenly stops rotating the value of g at the equator would:

• (a) Decrease
• (b)  Remain unchanged
• (c)   Increase
• (d)   Become zero

(c) Increases

66: If a solid sphere and solid cylinder of the same mass and density rotate about their own axis. The moment of inertia will be greater for:

• (a) Solid sphere
• (b) Solid cylinder
• (c) One that has the largest mass arrives first
• (d) The one that has the largest radius arrives first.

(b) Solid Cylinder

67: The gravitational force exerted on an astronaut on Earth, surface is 650 N down. When She is in the International Space Station, the gravitational force on her is:

• (a) larger
• (b)  exactly the same
• (c)  smaller
• (d)  zero

(c) smaller

68: A  solid cylinder of mass M and radius R rolls down an incline without slipping. The moment of inertia about an axis through its center of mass is M. At any instant while in motion, Its rotational kinetic energy about its center of mass is what fraction of its total kinetic energy?

• a) 1/2
• b) 1/4
• c) 1/3
• d) 2/5

(a) 1/2

69: For substances that do not flow easily have the ———-value for coefficient of viscosity.

• (a)   Low
• (b)   High
• (c)   Zero
• (d)   Negative

(b) High

70: A unit for viscosity, the centipoises, is equal to which of the following?

• a) 1/1000 Ns/m²
• b) 1/100 Ns/m²
• c) 100 Ns /m²
• d) 1000 Ns/m²

b) 1/100 Ns/m2

## CHAPTER 8

71: Stokes law is applicable only if a body is moving through a liquid at a slow speed and has ———shape.

• (a) cubical
• (b) spherical
• (c)  rough
• (d) any

(b) spherical

72: The net force that acts on a 10 N falling object, when it encounters 4 N of air resistance is:

• (a)    0 N
• (b)     4 N
• (c)      6 N
• (d)     10 N

(c) 6 N

73: A skydiver jumps from a high–flying helicopter. Before reaching terminal velocity, her acceleration:

• (a) increase
• (b) decrease
• (c)  remain the same
• (d) zero

(b) decreases

74: At terminal velocity the acceleration of a falling object is:

• a) 0 m/s²
• b) 1 m/s²
• c) -9.8 m/s²
• d) 9.8 m/s²

(a) 0 m/s2

75: According to the equation of continuity Av=constant. This constant is equal to:

• (a) volume of fluid
• (b)  mass of fluid
• (c)   density of fluid
• (d)   volume flow rate

(d) volume flow rate

76: At the constriction in the cross-section for ideal flow, from the equation of continuity it follows that the speed of the fluid is:

•  (a) greater
• (b)  less
• (c)  same
• (d)  zero

(a) greater

77: As the water in a level pipe passes from a narrow cross-section of pipe to a wider cross-section, the pressure against the wall:

• (a) increases
• (b)  decrease
• (c)   remain the same
• (d)   is zero

(a) increases

78: A 4 m high tank filled with water is drilled with four identical small holes at I m, 1.5m, and 2.5m from the bottom of the tank, the speed of efflux will be greatest from the hole at:

• a) 1m
• b) 1.5m
• c) 2m
• d) 2.5 m

a) 1m

79: Ventura meter is a device used to measure:

• (a) Mass of fluid
• (b) Viscosity of fluid
• (c) Speed of fluid
• (d)  Density of fluid

(c) Speed of fluid

80: A certain pipe has a cross-sectional area of 0.0001m² in which water is flowing at 10 m/s. The volume flow rate is:

• a) 0.00001 m³ /s
• b) 0.001 m³ /s
• c) 1 m³ /s
• d) 10.0001 m³ /s

b) 0.001 m3/s

## CHAPTER 9

81: At sufficiently high speeds the flow of viscous fluid becomes:

• (a) Unexpected
• (b)  steam line
• (c)  non viscous
• (d)  turbulent

(d) turbulent

82: The water in the tank is 10 m above the leak point. The speed with which the water emerges from the leak is:

• a) 10 m/s
• b) 14 m/s
• c) 194 m/s
• d) 0.1 m/s

b) 14 m/s

83: When the radius of the artery is reduced, the blood pressure:

• (a) increased
• (b) decreased
• (c) remain the same
• (d) is zero

(a) increased

84: Turning off a radio set is an example of:

• (a) mechanical resonance
• (b) musical resonance
• (c) electrical resonance
• (d) free vibrations

(c) electrical resonance

85: The heating and cooking of food evenly by a microwave oven is an example of:

• (a) H.M
• (b) resonance
• (c) damped oscillation
• (d) free oscillation

(b) resonance

86: If the period of oscillation of mass (M) suspended from a spring is 2 s, then the period of mass 4M will be:

•  (a) 1 s
• (b) 2 s
• (c) 3 s
• (d) 4 s

(d) 4s

87: Which one of the following properties is not exhibited by the longitudinal waves?

• (a) reflection
• (b) interference
• (c) diffraction
• (d) polarization

(d) polarization

88: Which of the following factors has no effect on the speed of sound in a gas?

• (a) Humidity
• (b) Pressure
• (c)  Temperature
• (d)  Density

(b) Pressure

89: If the amplitude of a wave is doubled, then its intensity is:

• (a) Doubled
• (b) Halved
• (d) One Fourth

(c) Quardrupled

## CHAPTER 10

90: The principal of Young, s double slits experiment is based on the division of:

• (a) Amplitude
• (b)  Frequency
• (c)  Velocity
• (d)  Wavelength

(d) Wavelenght

91: Signal from a remote control to the device operated by it travels with the speed of:

• (a) sound
• (b)  light
• (c)  ultrasonic
• (d)  supersonics

(b) light

92: The tip of a needle does not give a sharp image. It is due to:

• (a) polarization
• (b) interference
• (c) diffraction
• (d) refraction

(c) diffraction

93: In an isothermal change, internal energy:

• (a) decreases
• (b) increases
• (c) becomes zero
• (d) remains constant

(d) remians constant

94: A thermos bottle containing hot coffee is vigorously shaken. Consider coffee as the system, then its temperature:

• (a) Increases
• (b) Decreases below than 0
• (c) Remains the same
• (d) Decreases

(a) Increases

95: Maximum work can be obtained in the process called:

• (a) Cyclic
• (b) Isothermal
• (d)  Isochoric

(b) Isothermal

96: A heat engine takes in 800 J of heat at 1000 K and exhausts 600 J of heat at 400 K. What is the actual efficiency of this engine?

• a) 25%
• b) 40%
• c) 50%
• d) 75%

(a)25%

97: If the temperature of the heat source is increased, the efficiency of a Carnot, ‘s engine:

• (a) Increases
• (b) Decreases
• (c) Remains constant
• (d)  First increases then becomes constant

(a) Increases

98: Triple point of water is:

• a) 273.16°F
• b) 372.16 K
• c) 273.16°C
• d) 273.16 K

a) 273.16°F

99: A real gas can be approximate to an ideal gas at:

• a) low-density
• b) high-pressure
• c) high-density
• d) low-temperature

a) low-density

100: In which of the systems listed below is the entropy decreasing?

• (a) A gas is cooled
• (b) A plate is shattered
• (c) An egg is scrambled
• (d) A drop of eye diffuses in a cup of water

(a) A gas is cooled

### Conclusion:

In conclusion, “Class 11 Physics MCQs Chapter Wise” is an indispensable resource for students preparing for various examinations, including F.Sc Board Exams, MDCAT tests, CAT tests, Entry tests, and other competitive exams. These MCQs offer a structured and comprehensive approach to mastering the course of Class 11 Physics, chapter by chapter. By consistently practicing these multiple-choice questions, you not only enhance your grasp of fundamental concepts but also become adept at tackling MCQ-based exams effectively. We believe that these solved Physics MCQs of class 11  will empower you to confidently face any Physics-related questions. So, make the most of these valuable MCQs and set yourself on the path to academic success and excellence in your chosen examinations. If you need more MCQs of Physics for your online test preparation, you can find them below.