Question

A light wave has a frequency of 9 x 108. What is the wavelength of the light wave? (Assume the speed of light to be 3 x 108.)

Answer 1

Answer:

Explanation:

here,

f=9ₓ10^8hz

v=3ₓ10^8m/s

wave length(λ)=?

we know,v=λₓf

or,3ₓ10^8=λₓ9ₓ10^8

therefore,λ=0.333m