The critical angle of water when refracted angle is 90° and refracti – McqOptions

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1.	The critical angle of water when refracted angle is 90° and refractive index for water and air is 1.33 and 1 is
A.	48.8 °
B.	49.1 °
C.	50 °
D.	51 °
Answer» B. 49.1 °

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