Question

If the length of a wire is made double and radius is halved of its respective values. Then, the Young’s modulus of the material of the wire will :

• A. Remain same
• B. Become 8 times its initial value
• C. Become $\frac 14^{th}$ of its initial value
• D. Become 4 times its initial value

Answer 1

Answer: (A)

Remain same

Answer 2

Young’s modulus of matter depends on material of wire and is independent of the dimensions of the wire. As the material remains same so Young’s modulus also remain same.

So, the correct option is (A): Remain same.