Question

The critical angle of a medium 'B' with
respect another medium A is 45° and
the critical angle of a medium 'C' with
respect the medium B is 30°. The
critical angle of medium C with respect
to A is
(1) less than 30º (2) Greaterthan 45°
(3) 37.5°
(4) 75°​

Answer 1

Answer:

Hii Dude

meuB sin 45° = meu A

meu C sin30° = meu B

meu C sin30°sin45° = meu A

meu C 1/2√2 = meu A

critical angle = sin -1 ( 1 /2√2 ) < 30°

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