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 of getting dispersion with zero deviation, when the two prisms are combined is

Correct Answer is : √ωd+√ω′d′=0

\sqrt{\omega d}+\sqrt{\omega^{'} d^{'}}=0

(\omega d)^2+ (\omega^{'} d^{'}) ^2=0

EAMCET Engineering 2001 Solved Paper

Section: Physics

Question : 13 of 200

Marks: +1, -0

In the visible region the dispersive powers and the mean angular deviations for crown and flint glass prisms are ω,ω′ and d,d′ respectively. The condition of getting dispersion with zero deviation, when the two prisms are combined is

√ωd+√ω′d′=0
ω′d+ωd′=0
ωd+ω′d′=0
(ωd)2+(ω′d′)2=0

Validate

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