Question

If a light ray is traveling from air into a glass prism, how will the direction of the light ray change after it enters the prism?
The light ray will be refracted toward the normal.
The light ray will be refracted away from the normal.
The light ray will be refracted perpendicular to the normal.
The light ray will be refracted along the normal.
The light ray will not be refracted.
NextReset

Answer 1

The light ray will be refracted toward the normal.
Application of SNELL's law of refraction. Refracted towards the NORMAL air to glass. Away from the normal GLASS TO AIR.

Although the light will ALSO be dispersed, that isn't one of the choices in the posted q. Dispersion means that different light frequencies/wavelengths are refracted by different amounts. It's down to the optical properties of the glass as to how much dispersion. Glass prisms are used in optical spectrometry.

I don't know what "next reset" means ...