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A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined with another prism of glass of refractive index µ₂ = 1.75. The combination of the prism produces dispersion without deviation. The angle of the second prism should be
Options
(a) 7⁰
(b) 10⁰
(c) 12⁰
(d) 5⁰
Correct Answer:
10⁰
Explanation:
Deviation= 0, so ? = ?￢ﾂﾁ + ?￢ﾂﾂ = 0
(µ₁ – 1)A₁ + (µ₂ – 1)A₂ = 0
A₂(1.75 – 1) = – (1.5 – 1) 15⁰
A₂ = – 0.5 / 0.75 x 15⁰
or A₂ = – 10⁰
Negative sign shows that the second prism is inverted with respect to the first.
Related Questions: - A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- If the earth shrink such that its mass does not change but radius decreases to one
- When 4 A current flows for 2 min in an electroplating experiment,
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- Which of the two have same dimensions?
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- If the earth shrink such that its mass does not change but radius decreases to one
- When 4 A current flows for 2 min in an electroplating experiment,
- The instantaneous values of alternating current and voltages in a circuit are given as
- Which of the two have same dimensions?
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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