Answer: 1.5metres
Explanation:
Given that:
Wavelength (λ)= ?
Frequency F = 2 x 10^8Hz
Speed of light V = 3 x 10^8 m/s
The wavelength is the distance covered by the wave in one complete cycle, and represented by the symbol λ.
So, apply V = F λ
3 x 10^8 = 2 x 10^8 x λ
λ = (3 x 10^8 ➗ 2 x 10^8)
= 1.5 m
Thus, the wavelength of the light wave is 1.5 metres
