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A sphere of radius r is kept on a concav...

A sphere of radius r is kept on a concave mirror of radius of curation `R`. The arrangement is kept on a horizontal surface (the surface of concave mirror is friction less and sliding not rolling). If the sphere is displaced from its equilibrium position and left, then it executes `S.h.M.` The period of oscillation will be

A

`2pisqrt((((R-r)1.4)/g))`

B

`2pisqrt((((R-r))/g))`

C

`2pisqrt(((rR)/g))`

D

`2pisqrt(((R)/(gr))`

Text Solution

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The correct Answer is:
B
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