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प्रश्न
Write a relation for the angle of deviation (δ) for a ray of light passing through an equilateral prism in terms of the angle of incidence (i1) angle of emergence (i2) and angle of the prism (A).
थोडक्यात उत्तर
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उत्तर
The relation is i1 + i2 = A + δ
Replacing i2 by e the angle of emergence.
i1 + e = A + δ or [δ = (i1 + e) - A]
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