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Physics
Young’s modulus of a perfect rigid body is
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Q. Young’s modulus of a perfect rigid body is
KCET
KCET 2020
Mechanical Properties of Solids
A
Zero
35%
B
Unity
10%
C
Infinity
41%
D
Between zero and unity
13%
Solution:
Young’s modulus = stress/strain, and for a perfect rigid body we know that strain is equal to $0$ and hence Young’s modulus of a perfect rigid body becomes Infinity.