Question

Young'* modulus of a rigid body is

(A) 0

(B) 1

(C) ∞

(D) 0.5

Answer 1

Correct option: (C) ∞

Explanation:

Y = [(stress) / (strain)]

As a rigid body does not yield any strain irrespective of amount of stress, Young'* modulus is infinite.

∴ Y = ∞ for rigid body