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Chapter 20: Q17P (page 526)

Light passes from benzene (medium1)to water (medium 2) in Figure 20at (a)胃1=30掳or (b)胃1=0掳. Find the angle胃2in each case.

Short Answer

Expert verified

a) For胃1=30掳胃2=34.33,

b) For 胃1=0掳胃2=0掳,.

Step by step solution

01

Concept used.

The Snell's law is:

n1鈥�蝉颈苍胃1=n2鈥�蝉颈苍胃2.

02

Find the angle θ2 in θ1=30°

a)

Consider the angle胃1=30掳 that is made by light when it passes from benzene to water.

The angle胃2is:

1.50路sin30掳=1.33路sin胃2sin胃2=1.50路sin30掳1.33sin胃2=0.56391胃2=34.33掳

03

Find the angle θ2 is θ1=0°

b)

An angle胃1=0掳 is made by light when it passes from benzene to water.

The angle 胃2is:

1.50路sin0掳=1.33路sin胃2sin胃2=1.50路sin30掳1.33sin胃2=0胃2=0掳

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