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How does the refractive index of a medium depend on the wavelength of light used? - Physics

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Question

How does the refractive index of a medium depend on the wavelength of light used? 

Answer in Brief
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Solution

Refractive index of a medium decreases with increase in wavelength of light.
Refractive index of a medium for violet light (least wavelength) is greater than that for red light (greatest wavelength).

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Chapter 4: Refraction of Light at Plane Surfaces - EXERCISE - 4 (A) [Page 81]

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Selina Physics [English] Class 10 ICSE
Chapter 4 Refraction of Light at Plane Surfaces
EXERCISE - 4 (A) | Q 18. | Page 81
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