For dispersion without deviation
(μ−1)A+(μ′−1)A′=0
∣(μ−1)A∣=∣(μ′−1)A′∣
(1.42−1)×10o=(1.7−1)A′
4.2=0.7A′
A′=6o
NEET UG 2017 — Physics Optics
A thin prism having refracting angle 10o is made of glass of refractive index 1.42. This prism is combined with another thin prism made of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be
Held on 30 Apr 2017 · Verified 9 Jul 2026.
4o
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