.In case of a hollow shaft the average torsional energy/unit volume is given by a. (τ2/4C) x (D2+d2/D2)
b. (τ2/C) x (D2+d2/D2)
c. (τ2/4C) x (D+d/D2)
d. (τ/C) x (D2+d2/D2)

1 Answer

Answer :

a. (τ2/4C) x (D2+d2/D2)

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