Write the relation for velocity of longitudinal waves in,
(i) One dimensional rod
(ii) Three dimensional rod
(iii) Liquid medium

Explanation

(i) One dimensional rod (1D)
`v= sqrt((Y)/(rho))`
(ii) Three dimensional rod (3D) :
`v=sqrt((k+(4)/(3)eta)/(rho))`
(iii) For liquids :
`v=sqrt((k)/(rho))`