An electromagnetic wave going through vacuum is described by
` E= E_0 sin(kx- omega t)`. Which of the following is/are independent of the wavelength?

Options

A. `k`
B. `omega`
C. `k//omega`
D. `k omega`

Answer

C

Explanation

The angular wave number `k=(2pi)/(lambda)`, where `lambda` is the wave length. The angular frequency is `omega=2piv`.
The ratio `(k)/(omega)=(2pi//lambda)/(2piv)=(1)/(vpi)=(1)/(c)`=constant