Question

A light ray enters a glass enclosed fish tank. From air it enters the glass at 20.° with respect to the surface, then emerges into the water. The index for glass is 1.50 and for water 1.33. (a) What is the angle of refraction in the glass? (b) What is the angle of refraction in the water? (c) Is there any incident angle in air for which the ray will not enter the water due to total internal reflection?

Name: a light ray enters a glass enclosed fish tank from air it enters the glass at 20 with respect to the surface then emerges into the water the index for glass is 150 and for water 133 a what i 23784
Uploaded: 2022-06-30T16:21:38-08:00
Duration: 5 min 28 s
Channel: Madhur L
Description: a light ray enters a glass enclosed fish tank from air it enters the glass at 20 with respect to the surface then emerges into the water the index for glass is 150 and for water 133 a what i 23784

          A light ray enters a glass enclosed fish tank. From air it enters the glass at 20.° with respect to the surface, then emerges into the water. The index for glass is 1.50 and for water 1.33. 
(a) What is the angle of refraction in the glass? 
(b) What is the angle of refraction in the water? 
(c) Is there any incident angle in air for which the ray will not enter the water due to total internal reflection?

Added by Kathy W.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Madhur L

06/30/2022

Step 1

5 Use the formula: ng * sin(θi) = sin(θr) Substitute the values: 1.5 * sin(20°) = sin(θr) Calculate: sin(θr) = 1.5 * sin(20°) = 0.5 Find the angle of refraction in glass: θr = sin^(-1)(0.5) = 30° Show more…

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A light ray enters a glass enclosed fish tank. From air it enters the glass at 20.° with respect to the surface, then emerges into the water. The index for glass is 1.50 and for water 1.33. (a) What is the angle of refraction in the glass? (b) What is the angle of refraction in the water? (c) Is there any incident angle in air for which the ray will not enter the water due to total internal reflection?