The polar modulus for a hollow shaft of outer diameter ( D ) and inner diameter ( d ) is Options: A . &nbsp`pi/4 ((D^2 - d^2)/(D))` B . &nbsp`pi/16 ((D^3 - d^3)/(D))` C . &nbsp`pi/16 ((D^4 - d^4)/(D))` D . &nbsp`pi/32 ((D^4 - d^4)/(D))`

The polar modulus for

Question

The polar modulus for a hollow shaft of outer diameter (D) and inner diameter (d) is

Options:

A . `pi/4 ((D^2 - d^2)/(D))`

B . `pi/16 ((D^3 - d^3)/(D))`

C . `pi/16 ((D^4 - d^4)/(D))`

D . `pi/32 ((D^4 - d^4)/(D))`

Answer: Option C

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