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The pulleys and strings shown in fig are...

The pulleys and strings shown in fig are smooth and of negligible mass. For the system to remain in equilibrium the angle `theta` should be:

A

`0^(@)`

B

`30^(@)`

C

`45^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
`T=mg. 2T cos theta=sqrt(2)mg`
`therefore cos theta=(1)/sqrt(2), theta=45`
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