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A steel ring of radius r and cross secti...

A steel ring of radius r and cross section area A is fitted on to a wooden disc of radius `R(Rgtr)`. If Young's modulus be R, then the force with which the steel ring is expanded is

A

`AE(R)/(r)`

B

`AE((R-r)/(r))`

C

`(E)/(A)((R-r)/(A))`

D

`(Er)/(AR)`

Text Solution

Verified by Experts

The correct Answer is:
B
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