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Light Reflection and Refraction
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01/12/2020 12:14 pm
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Figure shows a ray of light as it travels from medium A to medium B. Refractive index of medium B relative to medium A is
(a) √3/√2
(b) √2/√3
(c) 1/√2
(d) √2
1 Answer
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01/12/2020 12:18 pm
(a) √3/√2
Explanation:
Here, ∠i = 60°, ∠r = 45°
Using Snell’s law of refraction, refractive index of medium B with respect to medium A.
AnB = sin i/sin r
= sin 60°/sin 45°
= (√3/2)/(1/√2)
= √3/√2