Question
Easy
Solving time: 3 mins
A flint glass prism and a crown glass prism are to be combined in such a way that the deviation of the mean ray is zero. The refractive index of flint and crown glasses for the mean ray are 1.620 and 1.518 respectively. If the refracting angle of the flint prism is 6.0°, what would be the refracting angle of the crown prism?
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Text solutionVerified
Given:
Refractive index of the flint glass, = 1.620
Refractive index of the crown glass, = 1.518
Refractive angle of the flint prism, A = 6°
Now,Let the refractive angle of the crown prism be .
For the net deviation of the mean ray to be zero,
Deviation by the flint prism = Deviation by the crown prism
i.e.,
(μ − 1) = ( − 1)
Thus, the refracting angle of the crown prism is 7.2°.
Refractive index of the flint glass, = 1.620
Refractive index of the crown glass, = 1.518
Refractive angle of the flint prism, A = 6°
Now,Let the refractive angle of the crown prism be .
For the net deviation of the mean ray to be zero,
Deviation by the flint prism = Deviation by the crown prism
i.e.,
(μ − 1) = ( − 1)
Thus, the refracting angle of the crown prism is 7.2°.
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Question Text | A flint glass prism and a crown glass prism are to be combined in such a way that the deviation of the mean ray is zero. The refractive index of flint and crown glasses for the mean ray are 1.620 and 1.518 respectively. If the refracting angle of the flint prism is 6.0°, what would be the refracting angle of the crown prism? |
Updated On | Nov 11, 2022 |
Topic | Ray Optics and Optical Instruments |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 1 |
Upvotes | 63 |
Avg. Video Duration | 9 min |