what is the relation between angle of incidence ,angle of deviation ,angle of prism and angle of emergence?


The required relation is, i + e = A + δ

‘i' is the angle of incidence

‘e’ is the angle of emergence

‘A’ is the angle of prism

‘δ’ is the angle of deviation

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Angle of incidence + Angle of emergence = Angle of deviation +angle of prism

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