The red light emitted by a he-ne laser has a wavelength of 633 nm in air and travels at 3.00 108 m/s. find the frequency of the laser light. answer in units of hz.

In order to compute the frequency, we will use the relationship between velocity, frequency and wavelength:
v = fλ
f = v / λ
f = (3 x 10⁸) / (633 x 10⁻⁹)
f = 4.74 x 10¹⁴ Hz