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The time period of a simple pendulum in a lift descending with constant acceleration g is
Options
(a) T=2π√l/g
(b) T=2π√l/2g
(c) zero
(d) Infinite
Correct Answer:
Infinite
Explanation:
When the lift falls freely under gravity, effective ‘g’ for pendulum in the lift = zero.
T = 2π √(l/g) = 2π√(l/o) = Infinite.
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- The power obtained in a reactor using U²³⁵ disintegration is 1000 kW
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- A particle moves a distance x in time but according to equation x=(t+5)⁻¹
- If the alternating current I=I₁ cosωt+I₂ sinωt, then the rms current is given by
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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