The electric field of an electromagnetic wave travelling through vaccum is given by the equation ` E = E_(0) "sin"(kx - omegat)` The quantity that is independent of wavelength is

Options

A. `(k)/(omega)`
B. `komega`
C. `omega`
D. k

Answer

A

Explanation

`(k)/(omega)=((2pi)/(lambda))/(2piupsilon)=(1)/(c)`
Where c is the speed of electromagnetic wave in vacuum. It is constant whose value is `3xx10^(8)ms^(-1)`.