The frequency of a light wave in a material is 2 x 1014 Hz and wavelength is 5000 Å. The refractive index of material will be
(a) 1.40
(b) 1.50
(c) 3
(d) 1.33
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The refractive index of the kerosene is greater than the refractive index of water.
A) both x and y are true
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Refractive index of glass relative to water is 9/8. The refractive index of water relative to glass is …………………
Correct option is D) 8/9
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The refractive index of glass for light going from aif’to glass is 3/2. The refractive index of air for light going from glass to air ………………….
Correct option is C) 4/6
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Correct option is D) 8/9
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Correct option is C) 2 × 108
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If n is the refractive index of a medium and v is the velocity of light in that medium, then which one of the following statements is correct ?
B) If n is high, v is low
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The refractive index of a material is 1. If the speed of light in vacuum is 3 × 108 ms^-1 then the speed of light in that material is ………………..
B) 3 × 108 m/s
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The Convex lens behaves as a converging lens if it is kept in a medium with refractive index less than the refractive index of the lens.
B) Both statements are false
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Light travels from a medium of refractive index µ1 to another of refractive index µ2 (µ1 > µ2). For total internal reflection
(D) Light must travel from the medium of refractive index µ2 to µ1.
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The refractive index of a medium is given by `mu=A+(B)/(lambda^(2))` where A and B are constants and `lambda` is the wavelength of light. Then the dim
Correct Answer - B The refractive index has no dimensions. `therefore (B)/(lambda^(2))` has no dimensions. i.e. B has the same dimensions as that of `lambda^(2)` or `("Length")^(2)` or (Area).
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