A simple pendulum is vibrating in an evacuated chamber, it will oscillate with
A
Increasing amplitude
B
Constant amplitude
C
Decreasing amplitude
D
First (C) then (a)
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B
Constant amplitude
b (b)As it is clear that in vacuum, the bob will not experience any frictional force. Hence, there shall be no dissipation therefore, it will oscillate with constant amplitude.
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