A ray of light passes through an equilateral prism such that an angle of incidence is equal to the angle of emergence and the latter is equal to th the angle of prism. The angle of deviation is |
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A ray of light passes through an equilateral prism such that an angle of incidence is equal to the angle of emergence and the latter is equal to th the angle of prism. The angle of deviation is |
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a) |
b) |
c) |
d) |
(d) Angle of incidence = angle of emergence Ie, Also, angle of equilateral prism = Thus, angle of deviation = =(45 ) = 30 |