Question

Given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelength of 3.55 x 10-8 meters?

Answer 1

Its very easy, all we need is the following formula

c= λ x ν

c= speed of light
λ= wavelength
ν= frequency

we can rearrange the formula to solve for the unknown asked.

ν= c/λ

v= (2.998 x 10^8)/ (3.55 x 10^-8)= 8.45 x 10^15