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JEE PHYSICS MCQ: RAY OPTICS

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In the visible region the dispersive powers and the mean angular deviations for crown and flint glass prisms are

\omega ,\,\,\omega '

and

d,\,\,d'

respectively. The condition for getting deviation without dispersion when the two prisms are combined is

View answer and explanation

Correct option: C

\omega d + \omega 'd' = 0

Option C is correct because the condition for deviation without dispersion requires the net angular dispersion to be zero, which is expressed as

\omega d + \omega 'd' = 0

.

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