# What Determines the Intensity in the Photon Picture of Light? - Physics

When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency.

#### Solution

Frequency and wavelength of light are related as

v=v/lambda

where v is the velocity of light. As the wave travels from one medium to another, the wavelength of light changes changing the speed of light with it. The frequency remains constant.

Concept: Refraction of Monochromatic Light
Is there an error in this question or solution?