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.