Question

When light undergoes refraction, the wavelength

Answer 1

Refraction occurs when a light wave, incident at an angle away from the normal.
It passes a boundary from one medium into another in which there is a change in the velocity of the light.
The wavelength decreases as the light enters the direction of the medium and the light wave change

Complete step-by-step solution:
The frequency of light does not change on refraction. When a ray of light passes from one medium to another, its direction (or path) changes because of a change in speed of light from one medium to another.
the angle between a refracted ray and the normal ray at the point of incidence to the interface at which refraction occurs.
The Light refracts whenever it travels at an angle with a different refractive index (optical density). When light travels from air into water, it slows down. Making it change direction slightly
When the light gets refraction at the surface of the separation of two media, wavelength decreases when light enters a denser medium, and wavelength increases when light enters a rarer medium.
Light is refracted when it crosses the interface from air into glass which moves more slowly. When the light speed changes at the interface, then the wavelength of the light changes. The wavelength decreases as the light enters the direction of the medium and the light wave change
Finally, The wavelength decreases in the denser medium, When light undergoes refraction

Note: The refraction of light occurs when it passes through a material.
The Refraction of light involves a change in direction
If the light has shorter wavelengths then it is undergoing most refraction.