A wave has velocity u in medium P and velocity 2u in medium Q. If the – McqOptions

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1.	A wave has velocity u in medium P and velocity 2u in medium Q. If the wave is incident in medium P at an angle of 30° then the angle of refraction will be [J & K CET 2005]
A.	30°
B.	45°
C.	60°
D.	90°
Answer» E.

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