A ray of light from rarer medium strikes a denser medium such that ref

1.	A ray of light from rarer medium strikes a denser medium such that reflected and refracted rays make an angle of 90º with each other. The angle of reflection and angle of refraction are 60º and 30º respectively, then refractive index of the medium is(a) 1.5(b) 1.73(c) 1.41(d) 1.75
Answer» Answer is : (b) 1.73 According to given question, r = 60º = i Given, condition satisfies Brewster’s law, \(\therefore \mu =tan\,i_p(i_p=i)\) = tan 60º = √3 = 1.73

A ray of light from rarer medium strikes a denser medium such that reflected and refracted rays make an angle of 90º with each other. The angle of reflection and angle of refraction are 60º and 30º respectively, then refractive index of the medium is(a) 1.5(b) 1.73(c) 1.41(d) 1.75

Answer»

Answer is : (b) 1.73

According to given question, r = 60º = i

Given, condition satisfies Brewster’s law,

\(\therefore \mu =tan\,i_p(i_p=i)\)

= tan 60º = √3

= 1.73

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A ray of light from rarer medium strikes a denser medium such that reflected and refracted rays make an angle of 90º with each other. The angle of reflection and angle of refraction are 60º and 30º respectively, then refractive index of the medium is(a) 1.5(b) 1.73(c) 1.41(d) 1.75

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