As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?

As light rays emerge from a glass prism into the air, they are refracted away from the normal.

Explanation

In a glass prism, when a beam of white light enters, it bends towards the normal, as it is going from a rarer medium (air) to a denser medium (glass). Whereas when it leave the prism, it bends away from the normal, as it is going from a denser medium (glass) to a rarer medium (air).

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Updated on: 10-Oct-2022

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