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In the minimum deviation position of an ...

In the minimum deviation position of an equilateral prism, angle of deviation is `30^@`. What are angle of incidence and angle of refraction ?

Text Solution

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Here, `del_m = 30^@, i= ? r = ? A = 60^@`. In minimum deviation position,
`i= (A + del_m)/(2) = (60^@ + 30^@)/(2) = 45^@`
`r= A//2 = 60^@//2 = 30^@`.
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Knowledge Check

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