⇦ | ⇨ |
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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Topics: Oscillations
(58)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- Two lines of force due to a bar magnet
- An electron moves on a straight line path XY as shown. The abcd is a coil adjacent
- A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground
- A stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 secs
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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