51. Which one of the following laws is not applicable to a simple pendulum ?.
52. The ratio of the reactions RA and RB of a simply supported beam shown in below figure is
53. Effect of a force on a body depends upon its
54. The resultant of the forces acting on a body will be zero if the body
55. A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be
56. A pilot flies a small plane in a vertical loop of radius r. At the top of its trajectory he experiences weightlessness. If the acceleration due to gravity is g, the speed of the plane at the top of its trajectory would be
57. Choose the word wrongly spelt:?
58. A Seconds pendulum executes
59. Amongst the following, for whose removal parliament’s resolution is not needed?
60. For maximum range of a projectile, the angle of projection should be
61. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is
62. Pick up the correct statement from the following for the structure shown in below figure.
63. A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is
64. What is the distance between the opposite sides of wickets in Cricket?
65. According to Law of Triangle of Forces
66. A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length
67. The following is not a law of static friction :
68. The velocity of a moving body, is
69. A spring scale in a stationary lift shows a reading of 60 kg for a man standing on it. If the lift starts descending at an acceleration of g/5, the scale reading would be
70. The resolved part of the resultant of two forces inclined at an angle θ in a given direction is
71. The world population day is observed in?
72. The following statement is one of the laws of Dynamic friction
73. A 50 kg boy climbs up a 8 m rope in gymnasiam in 10 sec. The average power developed by the boy is approximately
74. Lami's theroem states that
75. Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,