Q.

The value of Young’s modulus for a perfectly rigid body is

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a

1

b

Less than 1

c

Zero

d

Infinite

answer is D.

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Detailed Solution

For perfectly rigid body the condition is that there should not be any elognation (ΔL=0) for any value of force So from the formulae we know FLA⋅ΔL=YIf we put (ΔL=0) We get Y as ∞
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