JEE Class main Answered
Solve
Asked by sarveshvibrantacademy | 03 May, 2019, 09:32: AM
Expert Answer
We have following formulas
(1) Mean deviation δ = (μ - 1)A ...............................(1)
(2) Angular dispersion δV - δr = ( μv - μr )A .............................(2)
(3) Dispersive power = ........................(3)
Difference of refractive index ( μv - μr ) is obtained from eqn.(3) using known dispersive power
and the known refractive index of mean ray.
( μv - μr ) = dispersive power × (μ - 1) = 0.03×(1.62-1) = 0.0186 ...............................(4)
From eqn.(2), we get angular dispersion as, δV - δr = 0.0186 × 5 = 0.093
FRom eqn.(1), we get Mean deviation δ = (1.62 -1)×5 = 3.1°
Answered by Thiyagarajan K | 03 May, 2019, 11:25: PM
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