Question

what is critical angle?

Answer 1

⭐Hey guys here is your answer⭐

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✔✔Critical angle is define as angle of incidence beyond which rays of light passing through
a denser medium to the surface of less dense
medium are no longer refracted but totally reflected...........☺️

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I HOPE IT WILL HELP YOU☺️✌️

Answer 2

hey mate!!

here is u r answer!!

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in case of propagation of light from denser to rarer medium through a plane boundary .critical angle is the angle of incidence for which angle of refraction at right angle(90°]).

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I hope help u