SATHEE: Ray Optics and Optical Instruments

Ray Optics and Optical Instruments - Result Question 63

66. Angle of deviation ( $δ$ ) by a prism (refractive index $= μ$ and supposing the angle of prism A to be small) can be given by

[1994]

(a) $δ = (μ - 1) A$ $\sin \frac{A + δ}{2}$

(b) $δ = (μ + 1) A$

(d) $δ = \frac{μ - 1}{μ + 1} A$

Topic 5: Optical Instruments

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Answer:

Correct Answer: 66. (a)

Solution:

(a) When the angle of prism is small, $δ = (μ - 1) A$

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Ray Optics and Optical Instruments - Result Question 63

66. Angle of deviation ( δ ) by a prism (refractive index =μ and supposing the angle of prism A to be small) can be given by

Topic 5: Optical Instruments

Answer:

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66. Angle of deviation ( $δ$ ) by a prism (refractive index $= μ$ and supposing the angle of prism A to be small) can be given by