Question

for a critical angle ,angle of reficctian

Answer 1

This angle of incidence is known as the critical angle; it is the largest angle of incidence for which refraction can still occur. For any angle of incidence greater than the critical angle, light will undergo total internal reflection.

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Answer 2

$\huge\underline\mathfrak\red{Question}$

What is angle of reflection for a critical angle?

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$\huge\underline\mathfrak\blue{Answer}$

$\underline\mathfrak\pink{Angle \ refraction \ in \ rarer \ medium \ is \ 90 ° .}$

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$\huge\underline\mathfrak\green{Explanation}$

Critical angle, by definition, is the angle of incidence in denser medium for which the angle of refraction in rarer medium is 90 °