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Simple Pendulum

If the metal ...

Question

If the metal bob of a simple pendulum is replaced by a wodden bob, then its time period will be

A

Decreased

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B

The same

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C

Increased

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D

First

(c)

then

(a)

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Solution

The correct option is C The same
The expression of time period:
$T = 2 π \sqrt{\frac{l}{g}}$
This formula contains nothing which depends upon the nature of material which bob is made of. So time period will remain the same.

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