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Chapter 7: Q. 117 (page 468)

A light beam passes through a thick slab of material whose index of refraction is n2. Show that the emerging beam is parallel to the incident beam.

Short Answer

Expert verified

Hence,胃 is the angle of refraction of the emerging beam.

Step by step solution

01

Step 1. Given Information  

A light beam passes through a thick slab of material whose index of refraction is n2.

We have to show that the emerging beam is parallel to the incident beam.

02

Step 2. A light beam passes through a thick slab of material whose index of refraction is n2.

If 胃is the original angle of incidence and 蠒is the angle of refraction, thensin胃sin蠒=n2.

03

Step 3. The angle of incidence of the emerging beam is also ϕ and the index of refraction is 1n2.

Thus胃is the angle of refraction of the emerging beam.

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Most popular questions from this chapter

find the exact value of the expression

cos 255掳 - cos 195掳

Show thatsin3胃+sin3胃+120掳+sin3胃+240掳=-34sin3胃

Establish each identity.

sin3胃+cos3胃sin胃+cos胃=1-sin胃cos胃

In Problems 9鈥�36, find the exact value of each expression.

tansin-1-12

In Problems 9鈥�36, find the exact value of each expression.

csctan-11
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