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A metallic ring of radius r and cross-se...

A metallic ring of radius r and cross-sectional area A is fitted into a wooden circular disc of radius `R (R gt r)`. If the Young's modulus of the material of the ring is Y, the force with which the metal ring expands is

A

`(AYR)/(r )`

B

`(AY(R - r))/(r )`

C

`(Y(R - r))/(Ar)`

D

`(YR)/(AR)`

Text Solution

Verified by Experts

The correct Answer is:
B
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