An electromagnetic wave going through vacuum is described by E = Eo sin(k x – ω t) ; which is the following is/are independent of the wavelength ?

Q: An electromagnetic wave going through vacuum is described by E = E_o sin(k x – ω t) ; which is the following is/are independent of the wavelength ?

(a) k

(b) k/ω

(c) k ω

(d) ω

Sol: As , k = 2π/λ  . So ω is independent of the wavelength .

Ans: (d)