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A conical pendulum of length L makes an ...

A conical pendulum of length L makes an angle `theta` with the vertical. The time period will be

A

`2pisqrt((lcostheta)/(g))`

B

`2pisqrt((L)/(gcostheta))`

C

`2pisqrt((Ltantheta)/(gamma))`

D

`2pisqrt((L)/(g tantheta))`

Text Solution

Verified by Experts

The correct Answer is:
A

`T costheta=mg, Tsintheta=mRomega^(2)`
or `tantheta=(Romega^(2))/(g)=(R(2pi//T)^(2))/(g)`
`T=2pisqrt((R)/(g tantheta))`
But `R=Lsintheta`
`therefore" "T=2pisqrt((Lcostheta)/(g))`
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