1. If g is acceleration surface, the gain P.E of an object of mass m raised from surface o earth to a height equal to radios R of earth is A. mgR/2 B. 2mgR C. mgR D. mgR/4
3. Which of the following is true for ideal fluid? A. Viscous B. Compressible C. Incompressible D. Realistic
4. A disc and a ring of same mass and radius roll with same speed. Which has more KE? A. Disc B. Ring C. Same D. Depends on axis
8. Composite rod problem: Extension depends on: A. Length B. Area C. Modulus of elasticity D. All of these
9. Velocity is defined as: A. Distance / time B. Displacement / time C. Speed × time D. Acceleration × time
12. If the value of 'g' is same at depth 'd' inside earth and height 'h' above earth A. d = h B. d = 2h C. d = h/2 D. d = 3h
13. The acceleration of free fall on Moon is: A. More than Earth B. Same as Earth C. Less than Earth D. Zero
14. Limiting friction is: A. Less than kinetic friction B. Equal to kinetic friction C. Greater than kinetic friction D. Zero
15. According to Bernoulli, total energy per unit volume is sum of: A. Pressure + KE + PE B. Pressure + KE C. KE + PE D. Pressure only
17. The angle between A and B is θ. The value of triple product A·(B×A) is A. A²B B. Zero C. A²B sin θ D. A²B cos θ
19. A body moving on a rough surface finally stops due to: A. Gravity B. Friction C. Inertia D. Reaction
21. A stone thrown horizontally has vertical motion equivalent to: A. Uniform motion B. Free fall C. Circular motion D. Oscillatory motion
22. Flow of fluid through a pipe is laminar if Reynolds number is: A. < 2000 B. > 4000 C. 2000–4000 D. > 1000
23. The distances time graph of a particle at time t makes angle 45° with the time axis. After one second, it makes angles 60° with the time axis. What is the average acceleration of the particle? A. √3 - 1 B. √3 + 1 C. √3 D. 1
24. A body thrown vertically upward experiences acceleration: A. Only while going up B. Only while coming down C. Throughout the motion D. At highest point only
25. Which law gives quantitative definition of force? A. First law B. Second law C. Third law D. Gravitation
26. If a vector is multiplied by −1, its: A. Magnitude changes B. Direction changes C. Both change D. Becomes zero
27. A body projected vertically upward has zero acceleration at: A. Ground B. Halfway C. Highest point D. Never
28. A block of mass 2 kg is placed on a table. If a force of 3 N is applied on the block parallel to table then frictional force between block and floor if coefficient of friction is 0.5 A. 3 N B. 5 N C. 10 N D. 40 N
29. A force F1 acts on a particle so as to accelerate it form rest to a velocity v. The force F1 is then replaced by F2 which decelerates it to rest. A. F1 must be equal to F2 B. F1 may be equal to F2 C. F1 must be unequal to F2 D. none of these
30. The maximum height attained by the projectile does not depend on A. magnitude of initial velocity B. Angle of projection C. mass of projectile D. acceleration of projectile
32. The location of a particle has changed. What can we say about the displacement and distance covered by the particle? A. neither can be zero B. one may be zero C. both may be zero D. one is +ve and other is -ve
36. For a rolling body, total kinetic energy is: A. Only translational B. Only rotational C. Sum of translational and rotational D. Zero
37. An insect crawls a distance of 4m along north in 10 seconds and then a distance of 3m along east in 5 second average velocity of the insect is: A. 7/15 m/s B. 1/5 m/s C. 1/3 m/s D. 4/5 m/s
38. Impulse is numerically equal to: A. Change in velocity B. Change in force C. Change in momentum D. Rate of change of momentum
40. Which of these is a non-ideal effect in fluids? A. Viscosity B. Incompressibility C. Irrotational flow D. Steady flow
43. Current is not a vector quantity because it A. has no magnitude B. has no direction C. both a and b D. is not added according to vector law of addition
44. Which physical quantity is independent of direction? A. Force B. Displacement C. Speed D. Acceleration
45. Simple harmonic motion is a motion in which the restoring force is: A. Constant B. Proportional to displacement C. Proportional to velocity D. Proportional to acceleration
47. A liquid exerts pressure: A. Perpendicular to surface B. Along surface C. Along edge D. Along diagonal
48. At mean position, the acceleration of a particle in SHM is: A. Maximum B. Minimum C. Zero D. Infinite
49. Capillary tube flow is governed by: A. Poiseuille's law B. Bernoulli's principle C. Reynolds number D. Surface tension