COMEDK · Physics · 3. Motion In One Dimension
A simple pendulum has a period \(T\) inside a lift, when it is stationary. The lift is accelerated upwards with constant acceleration \(a\). The period
- A decreases
- B increases
- C remains same
- D becomes infinite
Answer & Solution
Correct Answer
(A) decreases
Step-by-step Solution
Detailed explanation
The time period of a pendulum is given by \(T=\frac{1}{2 \pi} \sqrt{\frac{l}{g}}\) When a lift containing a simple pendulum is accelerated upwards with acceleration \(a\), then its time period becomes \(T^{\prime}=\frac{1}{2 \pi} \sqrt{\frac{l}{(g+a)}}\) Clearly,…
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