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The torque required to produce a unit tw...

The torque required to produce a unit twist in a solide bar of length `L` and radius `r` is

A

`tau_(1) = tau_(2)`

B

`tau_(1) lt tau_(2)`

C

`tau_(1) gt tau_(2)`

D

`1 & 2` are correct

Text Solution

Verified by Experts

The correct Answer is:
C
`tau_("hollow") gt tau_("solid"), tau = (pi eta r^(4) Phi)/(2l)`
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