Question

Define Critical angle.

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Answer 1

Answer:

this is the define of critical angle . this will helps you to know about critical angle .

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Answer 2

Question :-

Define Critical angle.

Answer :-

Def :- A critical angle is the angle of incidence in the denser medium corresponding to which the angle of refraction in the rarer medium is 90° .

More on Critical angle :-

When a ray of light passes from a denser medium to a rarer medium, at a certain angle of incidence i = C, the angle of refraction becomes 90°, i.e., at i = C, r = 90°. Thus angle C is called Critical angle.

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