AP EAMCET · PHYSICS · Oscillations
A simple pendulum is vibrating in an evacuated chamber. It will oscillate with
- A constant amplitude
- B decreasing amplitude
- C increasing amplitude
- D amplitude, the variation of which cannot be predicted
Answer & Solution
Correct Answer
(A) constant amplitude
Step-by-step Solution
Detailed explanation
Since, the amplitude of simple pendulum depends on the net force acting on bob. As, in the vacuum, no external air dragging force acts on bob other than gravity. That's why amplitude remains constant in vacuum.
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