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White light is incident onto a 30prism at the 40angle shown in figurep35.41. violet light emerges perpendicular to the rear face of the prism. The index of refraction of violet light in this glass is 2.0%larger than the index of refraction of red light. At what angle does red light emerges from the rear face?

Short Answer

Expert verified

The red light emerges from the rear face at angle=1.02.

Step by step solution

01

Given information 

We need to find the angle of the red light emerges from the rear face.

02

Simplification 

n1sin1=n2sin2

2=sin-1n1sinn2

n1=1.00n2=1.53videt1.50x1.02

1=502=30.04

Here, 2is the angle of deviation, role="math" localid="1650189647745" n1andn2are refractive index and 1and2are the angle of incident.

localid="1650188923215" 2=sin-1n1sin1n2

n1=1.00n2=1.49red1.53x98

=502=30.72

Red=R-V=30.72-30.04=0.68.

n2=1.49n3=1.00

2=0.68

3=sin-1n2sin2n3

3=1.02.

03

Diagram

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