STANDARDPhysics-Oscillations
STANDARD Physics Simple Harmonic Motion MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A simple pendulum suspended from roof of a lift oscillates with frequency v when the lift is at rest. If the lift falls freely under gravity, its frequency of oscillation becomes
A
zero
B
v
C
2v
D
infinite
Correct Answer
Option A
Detailed Explanation
When the lift is at rest, the frequency of oscillation of a simple pendulum is v = 1/(2π)√(g/L). When the lift falls freely, the effective acceleration due to gravity becomes zero, making the frequency zero.
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