Explanation Given Info: Critical Angle: Angle of incident angle is said to be critical angle when its refracted ray makes right angle with the normal provided light inters from denser medium to rarer medium. Refractive index of water n a i r = 1.33 Refractive index of crown glass n c = 1.52 Let the angle of incident (critical angle)be ∠ i = ∠ c Angle of refraction be ∠ r = 90 0 Formula Used: Apply Snell’s Law n c sin ∠ i = n w a t e r sin ∠ r n c sin ∠ c = n w a t e r sin 90 0 Here, all alphabets are in their usual meanings. Calculation: Apply Snell’s Law n c sin ∠

7th Edition

ISBN: 9780137453276

Author: GIANCOLI

Publisher: SAVVAS L

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Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as:

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Chapter 23, Problem 35P

To determine

The term critical angle and to find the material in which light starts for its internally reflected case.

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Chapter 23, Problem 34P

Chapter 23, Problem 36P

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Chapter 23 Solutions

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