Question:
The Young's modulus of a perfectly rigid body is:
The Young's modulus of a perfectly rigid body is:
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Young's modulus is infinite for a perfectly rigid body because it does not deform under stress.
Updated On: Mar 25, 2026
- unity
- zero
- infinity
- some finite non-zero constant
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The Correct Option is C
Solution and Explanation
Step 1: Young's modulus definition.
Young's modulus \( Y \) is the ratio of stress to strain in a material. For a perfectly rigid body, strain is zero under stress, implying that the Young’s modulus is infinite.
Thus, the correct answer is (3).
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