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प्रश्न
Express the refractive index μ of a medium in terms of the velocity of light.
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उत्तर
The refractive index ‘μ’ of an optical medium is defined as the ratio between the velocity of light in vacuum divided by the velocity of light in the given optical medium. Thus,
`µ="Velocity of light in vacuum"/"Velocity of light in the given optical medium"`
संबंधित प्रश्न
Write a short note on dispersion of light.
A student traces the path of a ray of light passing through a rectangular glass slab and marks the angle of incidence i, angle of refraction r and angle of emergence e, as shown.
The correctly marked angle(s) is/are
(A) ∠ i only
(B) ∠ e only
(C) ∠ r only
(D) ∠ i and ∠ e
Name the colour of white light which is deviated the most on passing through a prism.
A total reflecting equilateral prism can be used to deviate a ray of light through:
Name the material for which the refractive index is found to be maximum.
Define the term refractive index of a medium in terms of velocity of light.
In the diagram below, PQ is a ray of light incident on a rectangular glass block.
How are the angles ‘i’ and ‘e’ related to each other?
Calculate the velocity of light in a glass block of refractive index 1.5. (Velocity of light in air = 3 × 108 m/s)
