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The figure above shows a plot of angles of deviation through a glass prism when...

Physics
JAMB 2005

The figure above shows a plot of angles of deviation through a glass prism when light is incident at θ degrees on the prism. The incident angle that produces the minimum deviation is

  • A. 20o
  • B. 18o
  • C. 35o
  • D. 25o
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Correct Answer: Option D
Explanation

From the given graph, when the angle of minimum deviation = 18º, the angle of incidence = 25º

There is an explanation video available below.

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Explanation Video

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