The dimensional formula of effective torsional constant of spring is _______ .

Options

A. `M^(1)L^(2)T^(-3)`
B. `M^(1)L^(2)T^(-2)A^(-2)`
C. `M^(1)L^(2)T^(-2)`
D. `M^(0)L^(0)T^(0)`

Answer

C

Explanation

`tau=Ctheta,C=tau/0,C=[ML^(2)T^(-2)]`