Question

What is it called when light changes direction after leaving a lens?


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Answer 1

☞AnSwer :-

this Phenomenon is called Refraction .

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☞Refraction :-

➠in short , bending of light from one medium to another medium.

➠Refraction is responsible for image formation by lenses to the eyes .

➠The ratio of sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given color and for the given pair of media.

This law is also known as Snells law of refraction.

Answer 2

Answer:

$\huge\underline\bold\red{ANSWER}$

Light changes direction when it goes from air into another medium. This effect is called refraction. ... It also explains why light changes direction when it goes through a prism.