| ⇦ | 
| ⇨ |
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: - Four blocks of same mass connected by cords are pulled by a force F
- If 20% of a radiactive element decays in 10 days, then amount of original material left
- Two point charge +9e and +e are at 16 cm away from each other.
- When a metallic surface is illuminated with radiation of wavelength λ,
- A resistance of 20 ohm is connected to a source of an alternating potential V
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Four blocks of same mass connected by cords are pulled by a force F
- If 20% of a radiactive element decays in 10 days, then amount of original material left
- Two point charge +9e and +e are at 16 cm away from each other.
- When a metallic surface is illuminated with radiation of wavelength λ,
- A resistance of 20 ohm is connected to a source of an alternating potential V
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply