Physics Elasticity Question 76

Question: The Young’s modulus of a wire of length L and radius r is Y N/m2. If the length and radius are reduced to L/2 and r/2, then its Young’s modulus will be

[MP PMT 1985; MP PET 1997; KCET 1999]

Options:

A) Y/2

B) Y

C) 2Y

D) 4Y

Show Answer

Answer:

Correct Answer: B

Solution:

Young’s modulus of wire does not varies with dimension of wire. It is the property of given material.