A wave has velocity u in medium P and velocity 2 u in medium Q . If the wave is refracted from medium P to medium Q at an angle of incidence 30 ° , then the angle of refraction will be

Question

A wave has velocity u in medium P and velocity 2 u in medium Q . If the wave is refracted from medium P to medium Q at an angle of incidence 30 ° , then the angle of refraction will be, 30 °, 45 °, 60 °, 90 °

MARKS App · Accepted Answer

From Snell's law, μ P sin 30 o = μ Q sin r sin r = μ P μ Q sin 30 o as μ ∝ 1 v sin r = 2 u u 1 2 = 1 r = 90 o

Search any question & find its solution

Looking for more such questions to practice?