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A prism having refracting angle 4^(@) is...

A prism having refracting angle `4^(@)` is placed in air Calculate the angle of deviation of a ray incident normally or nearly normally on it. The refractive index of the material of the prism `=(3)/(2)` .

Text Solution

Verified by Experts

The refractive angle of the prism, `A = 4^@)`. So it is a thin prism. We know that the deviation of a ray in a thin prism for normal or nearly normal incidence is given by,
`delta = (mu - 1)A " " therefore = ((3)/(2) - 1) xx 4^(@) = 2^(@)`
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