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A hollow sphere of mass 'M' and radius '...

A hollow sphere of mass 'M' and radius 'R' is rotating with angular frequency 'omega’. It suddenly stops rotating and 75% of kinetic energy is converted to heat. If 'S' is the specific heat of the material in `J//kg` K then rise in temperature of the sphere is (M.I. of hollow sphere `= 2/3 MR^2`)

A

`(Romega)/(4S)`

B

`(R^2omega^2)/(4S)`

C

`(Romega)/(2S)`

D

`(R^2omega^2)/(2S)`

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