Question
Asked Nov 3, 2019
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13.
o
Laht aters curved side ot a Semi-cylindrical dish ot water
alng a radius hne at an anle of -25.Wl yh
leave the dish thmugh the flat side? If so,at what
angle of retactiun?t not, why not? Far water,n 1.323.
е
A. NO haht will notext
There mll be a intemal retlection
C Yes, the lyht mll extaran angle of 185°.
Yes, the light mll exitatan aple of 34.a
B
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13. o Laht aters curved side ot a Semi-cylindrical dish ot water alng a radius hne at an anle of -25.Wl yh leave the dish thmugh the flat side? If so,at what angle of retactiun?t not, why not? Far water,n 1.323. е A. NO haht will notext There mll be a intemal retlection C Yes, the lyht mll extaran angle of 185°. Yes, the light mll exitatan aple of 34.a B

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Expert Answer

Step 1

Given:

Angle of incidence = 25ο

Refractive index if water, n = 1.333

 

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incident ray 25 water air reflected ray

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Step 2

Condition for refraction is that the angle of incidence must be less than critical angle in order to avoid total internal reflection.

Step 3

Critical angle can be ...

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1 sin i n where, is the critical angle n is the refractive index plug in the values 1 sin i 1.333 1 i =sin 1.333 i=48.61°

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Wave Optics

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