Question

Two wires having same length and material are stretched by same force. Their diameters are in the ratio $1 : 3$. The ratio of strain energy per unit volume for these two wires (smaller to larger diameter) when stretched is

• A. $3 : 1$
• B. $9 : 1$
• C. $27 : 1$
• D. $81 : 1$

Answer 1

Answer: (D)

$81 : 1$

Answer 2

Answer (d) $81 : 1$