Question

For a solid rod, the Young's modulus of elasticity is $3.2 \times 10^{11} Nm ^{-2}$ and density is $8 \times 10^3 \,kg \,m ^{-3}$. The velocity of longitudinal wave in the rod will be. s

• A. $3.65 \times 10^3 \,ms ^{-1}$
• B. $18.96 \times 10^3 \, ms ^{-1}$
• C. $145.75 \times 10^3 \, ms ^{-1}$
• D. $6.32 \times 10^3 \, ms ^{-1}$

Answer 1

Answer: (D)

Correct answer is (d) $6.32 \times 10^3 \, ms ^{-1}$