Term I Exam Revision Test Paper 2 Class XI Subject Physics

 Term I Exam Revision Test Paper 2 Class XI Subject Physics

Time 1.5 hr Multiple Choice Questions Dated: 02.12.2021 MM 35

Instructions: 1.Question paper has 35 multiple choice questions carrying 1 mark each.

2. Each question is compulsory.

MULTIPLE CHOICE QUESTIONS:

1. A unitless quantity 

  • (a) always has a non-zero dimension 
  • (b) may have a non-zero dimension.
  • (c) never has a non-zero dimension 
  • (d) none of the above

2. The significant figure in 0.500 is 

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

3. The distance travelled by an object is directly proportional to the time taken. Its acceleration

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

4. The relative velocity of a particle moving with a velocity v w.r.t. itself is

  • (a) zero 
  • (b) –v 
  • (c) v 
  • (d) none of the above

5. A ball is projected vertically upwards with a velocity v. It comes back to ground in time t. Which v-t graph shows the motion correctly?



Ans: C

6. If a particle executes uniform circular motion, choose the correct statement

  • (a) The velocity and speed are constant.
  • (b) The acceleration and speed are constant.
  • (c) The velocity and acceleration are constant.
  • (d) The speed and magnitude of acceleration are constant.

7. A particle just completes motion in a vertical circle of radius r. Its velocity at the highest point is

  • (a) √๐‘”๐‘Ÿ 
  • (b) √2๐‘”๐‘Ÿ 
  • (c) √5๐‘”๐‘Ÿ 
  • (d) None of the above

8. If two masses (M & m) are connected on a horizontal plane and a force is applied on the combination, then the tension T depends on

  •  (a) whether force is applied on M or m 
  • (b) the force applied on the system
  • (c) Can’t be predicted
  • (d) None of these

9. The work done by the centripetal force for a body moving in a circular path is

  • (a) Negative 
  • (b) positive 
  • (c) zero 
  • (d) constant

10. If the stone is thrown up vertically and return to ground, its potential energy is maximum

  • (a) During the upward journey 
  • (b) At the bottom 
  • (c) At the maximum height 
  • (d) During the return journey

11. A body of mass M collides against a wall with a velocity v and retraces its path with the same speed. The change in momentum is (take the initial direction of the velocity as positive)

  • (a) 2 MV 
  • (b) 1 MV 
  • (c) - 2 MV 
  • (d) Zero

12. For which of the following does the centre of mass lie outside the body?

  • (a) Pen 
  • (b) Dice 
  • (c) Rectangular tile 
  • (d) Bangle

13. Which of the following physical quantity has the dimension of [ML²T⁻³]

  • (a) work 
  • (b) power 
  • (c) pressure 
  • (d) impulse

14. In the equation: y=A sin(๐›št-kx),t and x stand for time and distance respectively. The dimensional formula of ฯ‰ and k is 

  • (a)M°L° T⁻¹ , M°L⁻¹ T° , 
  • (b)M°L⁻¹ T⁻¹  ,  M°L⁻¹ T° , 
  • (c)M°L° T ,  M°L° T, 
  • (d)ML° T⁻¹ , M°L⁻² T°


15. Two objects are projected at angles 30° and 60° respectively with respect to the horizontal direction. The range of two objects are denoted as ๐‘…30๐‘œ and ๐‘…60๐‘œ . Choose the correct relation from the following 


  • (a)๐‘…₃₀° = ๐‘…₆₀° 
  • (b) ๐‘…₃₀° = 4๐‘…₆₀° 
  • (c)๐‘…₃₀° = ๐‘…₆₀°/2 
  •  (d) ๐‘…₃₀° = 2๐‘…₆₀° 

16. The displacement of a body from a fixed point at any instant is given by x = 5t²+6t+4, what type of motion the particle under goes?

  • (a) with uniform velocity 
  • (b) with uniformly accelerated motion
  • (c) with non-uniformly accelerated motion 
  • (d) cannot be predicted

17. A man goes to his office from home at the speed of V₁₂ and return next half distance with velocity V₂. The average velocity of the car is

  • (a) (V₁+V₂) / 2 
  • (b) 2 V₁V₂ / (V₁+V₂) 
  • (c) V₁V₂ / (V₁+V₂) 
  • (d) √V₁V₂

18. The acceleration of a particle can be found from

  • (a) slope of displacement time curve 
  • (b) area under displacement time curve
  • (c) slope of velocity-time curve 
  • (d) area under velocity-time curve

19. A man has mass M. He stands on a weighing scale in the lift, which is moving upwards with a uniform acceleration of a. What would be the reading on the scale?

  • (a) Mg 
  • (b) M(g+a) 
  • (c) M(g-a) 
  • (d) Zero

20. A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2. The weight of the block is-

  • (a) 20 N 
  • (b) 50 N 
  • (c) 100 N 
  • (d) 2 N

21. A chain of length L and mass M is held on a smooth table with its 1/nth part hanging over the edge. The work done in pulling the chain is directly proportional to 

  • (a) n-3 
  • (b) √n 
  • (c) n 
  • (d) n-2

22.Two masses 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their linear momentum is 

  • (a) 4 : 1 
  • (b) 1 : 1 
  • (c) 1 : 2 
  • (d) 1 : 6

23. Which of the following is equal with Newton-meter?

  • (a) Joule 
  • (b) Horse Power 
  • (c) Watt 
  • (d) Pascal

24.Moment of inertia depends on

  • (a) Distribution of particles 
  • (b) Mass 
  • (c) Position of axis of rotation 
  • (d) All of these.

25. If a body is rotating about an axis, passing through its centre of mass then its angular momentum is directed along its 

  • (a) Radius 
  • (b) Tangent 
  • (c) Circumference 
  • (d) Axis of rotation

26. A particle moves on a circular path with decreasing speed. Choose the correct statement.

  • (a) Angular momentum remains constant. 
  • (b) Acceleration is towards the centre.
  • (c) The direction of angular momentum remains constant
  • (d) Particle moves on a spiral path with decreasing radius

27. A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same, which one of the following will not be affected?

  • (a) Moment of inertia 
  • (b) Angular momentum 
  • (c) Angular velocity 
  • (d) Rotational kinetic energy

28. A dancer on ice spins faster when she folds here arms. This is due to

  • (a) Increases in energy and increase in angular momentum 
  • (b) Decrease in friction at the skates
  • (c) Constant angular momentum and increase in kinetic energy
  • (d) Increase in energy and decrease in angular momentum

29.In the relation : F=a√๐‘ฅ +b t²where F is force,x is distance and t is time ,the dimensions of a/b is

  • (a) ML²T²
  •  (b) ML²T⁻¹/²
  •  (c) ML⁻¹T⁻³
  •  (d) M⁰L⁻¹/²T²

30. An experiment measures quantities a,b,c and X is calculated from the formula: X=ab²/c³.The percentage of measurements in a,b,c are 1%,2%,3% respectively. The percentage error in X is

  • (a) 26% 
  • (b) 28% 
  • (c) 30% 
  • (d) 14%

31. If two vectors 2 ๐‘–̂+ 3๐‘—̂+ ๐‘˜̂and - 4๐‘—̂– 6๐‘—̂– ฮป ๐‘˜̂ are parallel to each other, then value of ฮป is

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

32. A car takes a circular turn of radius 50 cm with a velocity of 36 km/hour. The centripetal acceleration of the car is 

  • (a) 1 ms⁻²
  • (b) 2 ms⁻²
  • (c) 3 ms⁻²
  • (d) 5 ms⁻²

33. A bullet of mass 25 g moving with a velocity of 200 cm/s is stopped within 5 cm of the target. The average resistance offered by the target is 

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

34.The coefficient of friction between two surfaces is 0.2.The angle of friction is

  • (a) sin⁻¹(0.2) 
  • (b) cos⁻¹(0.2) 
  • (c) tan⁻¹(0.1) 
  • (d) cot⁻¹ (5)

35. A gun of mass 1000 kg fires a projectile of mass 1 kg with a horizontal velocity of 100 m/s. The velocity of recoil of the gun in the horizontal direction is 

  • (a) 5 m/s 
  • (b) 0.1 m/s 
  • (c) 15 m/s 
  • (d) 20 m/s

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