A prism having an apex angle of 4o and refractive index of 1.50 is located in front of a vertical plane mirror as shown in the figure. A horizontal ray of light is incident on the prism. The total angle through which the ray is deviated is?
A
4o clockwise
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B
178o clockwise
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C
2o clockwise
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D
8o clockwise
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Solution
The correct option is B178o clockwise
Given: A prism having an apex angle of 4∘ and refractive index of 1.50 is located in front of a vertical plane mirror as shown in the figure . A horizontal ray of light is incident on the prism .
To find the total angle through which the ray is deviated