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The string of a pendulum is horizontal. ...

The string of a pendulum is horizontal. The mass of the bob is m. Now the string is released. The tension in the string in the lowest position is -

A

mg

B

2 mg

C

3 mg

D

4 mg

Text Solution

Verified by Experts

The correct Answer is:
C
`v^(2)=2gh=2gR`

`T-mg=(mv^(2))/(R)`
Substituting value of `v^(2)`, we get T = 3gm
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