Question

For a solid rod, the Young's modulus of elasticity is 3.2 × 10¹¹ Nm^-2 and density is 8 × 10³ kg m^-3. The velocity of longitudinal wave in the rod will be. 

(1) 145.75 × 10³ ms^-1 

(2) 3.65 × 10³ ms^-1 

(3) 18.96 × 10³ ms^-1 

(4) 6.32 × 10³ ms

Answer 1

(4) 6.32 × 10³ ms