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A mass is supported on a frictionless ho...

A mass is supported on a frictionless horizontal surface. It Is attached to a string and rotates about a fixed center at an angular velocity `omega_(0)`.If the length of the string and angular velocity both are doubled, the tension in the string which was initially `T_(0)` is now

A

`T_(0)`

B

`T_(0)//2`

C

`4T_(0)`

D

`8T_(0)`

Text Solution

Verified by Experts

The correct Answer is:
D
`T_(0)=m omega^(2)l`
`T=m(2omega)^(2)xx2l=8T_(0)`
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