Questions
A thin prism with angle is made of glass of refractive index 1.52 is combined with another prism made of glass of refractive index 1.65 to produce direct vision combination. The angle of prism is
detailed solution
Correct option is D
(4)For direct vision combination (dispersion without deviation),δ1 = δ2⇒ A1μ1−1 = A2μ2−1⇒ A2 = 30 × 1.52−11.65−1=2.40Talk to our academic expert!
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Refractive index of a transparent material for violet light is 1.585 and that for red light is 1.485. A thin prism is made of this material and a ray of white light is incident on one refracting surface of this prism at near normal incidence. Then ratio of angle of dispersion to the mean angle of deviation is
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