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A mass attached to a string rotates ...

A mass attached to a string rotates about a fixed centre with an angular velocity `omega ` in a horizontal plane ,The length of the string and the angular velocity are now doubled .IF `T_(0)` is the initial tension in the string , then the new tension will be

A

`2T_(0)`

B

`4T_(0)`

C

`8T_(0)`

D

`6T_(0)`

Text Solution

Verified by Experts

The correct Answer is:
C
`(T )/(T_(0))=(mr _(2) omega_(2)^(2))/(mr_(1)omega_(1)^(2))=8`
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