Critical angle of electromagnetic radiation takes place if

1.	Critical angle of electromagnetic radiation takes place if
A.	angle of incidence is equal to angle of refraction
B.	angle of incidence is greater than the angle of refraction
C.	angle of incidence is equal to 90¬∞
D.	angle of refraction is equal to 90¬∞
Answer» E.

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Critical angle of electromagnetic radiation takes place if

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