JEE Main Physics MCQs - Part 7

Questions 61-70 of 100

61. For a projectile, the ratio of maximum height H to the square of time of flight T² is:

62. Which of the following is always true for the coefficient of static friction (μ_s) and the coefficient of kinetic friction (μ_k)?

63. Which of the following is a non-conservative force?

64. A girl is sitting on a rotating stool with her arms folded. When she stretches her arms, her angular speed:

65. A satellite is orbiting very close to the Earth's surface. Its orbital velocity is approximately:

66. The electric field due to an electric dipole at a point on its axial line at distance r is proportional to (for r >> d):

67. The drift velocity of electrons in a conductor is typically of the order of:

68. A wire of length L carrying current I is placed in a uniform magnetic field B at an angle of 30°. The force on the wire is:

69. Lenz's Law is a consequence of the law of conservation of:

70. The impedance Z of a series RC circuit is given by:

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