Question

If a wave of wavelength $\lambda$ is travelling in a medium with velocity V, then its frequency is

• A. $\frac{V}{\lambda }$
• B. $v\lambda$
• C. $\frac{\lambda }{V}$
• D. $\frac{1}{V}$

Answer 1

The correct option is A $\frac{V}{\lambda }$

the relation between frequency and wavelength is

$f=\frac{V}{\lambda }$

(V is velocity, $f$ is frequency and T is time-period)

so the answer is A.