A transverse wave moves from a medium A to a medium B. In medium A, the velocity of the transverse wave is 500 `ms^(-1)` and the wavelength is 5 m. The frequency and the wavelength of the wave in medium B when its velocity is `600 ms^(-1)`, respectively are

Options

A. 120 Hz and 5 m
B. 100 Hz and 5 m
C. 120 Hz and 6 m
D. 100 Hz and 6 m

Answer

D

Explanation

`v_(A)=500 ms^(-1), lambda=5 m`
`:.` Frequency in medium B
`f_(B)=(v_(A))/(lambda_(A))=(500)/(5)=100Hz`
Wavelength in medium B is
`lambda_(B)=(v_(B))/(f_(B))=(600)/(100)=6 cm`