Q.

An oscillating simple pendulum is arranged in a vacuum jar, then

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a

it stops oscillating

b

it continues to oscillate

c

it oscillates with slightly more time period

d

it oscillates with slightly less time period

answer is B.

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Detailed Solution

No air resistance in vacuumw=km-b2m2 w = angular frequency k = propogation constant m = mass of oscillator b = damping factor of medium in which oscillator is here b=0 hence oscillator continues to oscillate
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An oscillating simple pendulum is arranged in a vacuum jar, then