A light ray whose frequency is 6.00 *10¹⁴ Hz in vacuum is incident on water (n = 1.33).The wavelength of the light after it enters the water is (in nm) A)798 B)500 C)665 D)376 E)266

Question

Quizplus · Accepted Answer

The wavelength in a medium is given by λ = c/(n*f), where c is the speed of light in vacuum, n is the refractive index, and f is the frequency. Substituting the given values, λ = (3 x 10^8 m/s) / (1.33 * 6 x 10^14 Hz) = 376 nm.

A Light Ray Whose Frequency Is 6