An incident ray strikes a boundary at a 72.5-degree angle, resulting in an angle of refraction of 39.6 degrees. The index of refraction of the first medium is 1.0003. What is me…

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asked Nov 13, 2019 45.8k views

2 Answers

Nniloc · Answer 1 · 2019-11-16T20:41:27+0000

Answer:

medium 1 = air

medium 2 = Lucite

Step-by-step explanation:

Part a)

here the refractive index of first medium is 1.0003

so from the given table this is the refractive index of air

so medium 1 is AIR

Part b)

As per law of refraction we know that

$n_1sin\theta_1 = n_2 sin\theta_2$

here we know that

n_1 = 1.0003

$\theta_1 = 72.5$

$\theta_2 = 39.6$

now from Snell's law we will have

1.0003 sin(72.5) = n_2 sin39.6

so we have

n_2 = (1.0003(sin72.5))/(sin39.6)

so we have

n_2 = 1.50

so medium 2 is LUCITE