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In a conical pendulum arrangement, a str...

In a conical pendulum arrangement, a string of length 1 m is fixed at one end with a bob of mass 100 g and the string makes `(2)/(pi) mvs^(-1)`around a vertical axis through a fixed point. The angle of inclination of the string with vertical is: (Take `g = 10 ms^(-1)`)

A

`tan^(-1)(5//8)`

B

`tan^(-1)(3//5)`

C

`cos^(-1)(8//5)`

D

`cos^(-1)(5//8)`

Text Solution

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The correct Answer is:
D
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