Question

Under the same load, wire A having length $5.0m$ and cross section $2.5\times 10^{-5}{m}^2$ stretches uniformly by the same amount as another wire $B$ of length $6.0m$ and a cross section of $3.0\times 10^{-5}$ $m^2$ stretches. The ratio of the Young's modulus of wire $A$ to that of wire $B$ will be :

• A. $1:4$
• B. $1:1$
• C. $3=10$
• D. $1:2$

Answer 1

Answer: (B)

Correct answer is (b) $1:1$