Question

Q. A light wave travels a distance d' in
a medium of refractive index 'u'. When a
distance is made half, then the refractive
index is,
A. Remains same
B. Doubled
C. Become Half
D. None of these​

Answer 1

Answer:

answer c

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Answer 2

• When light travels distance half than the previously traveled distance in a medium of refractive index 'u', Refractive index will remain u ( option A)
• Refractive index is the relative property of the material, it does not change depending on how much distance is traveled by the light ray in the medium.
• Refractive index "u"= speed of light in a vacuum- c /speed of light in the medium.
• It does not depend on the distance traveled by light in the medium.
• It is a function of the optical density of the medium.
• It only depends on 2 factors:-

1. The temperature of the medium
2. wavelength of light