If the refractive index of transparent material is 3/2 the speed of light in that medium (in ip/s) is ……………………..
A) 4.5 × 108
B) 4.5 × 1010
C) 2 × 108
D) 2 × 1010
1 Answers
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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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When light is going from one medium (other than vacuum or air) to another medium then the value of refractive index is called ……………..
B) relative refractive index
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The ratio of speed of light in first medium to speed of light in second medium is called …………………..
B) refractive index of 2nd medium with respect to 1st medium
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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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When light enters from air to a medium “X” its speed becomes 2 Answer: 108 ms-1 , then refractive index of the medium ‘X’ is …………………
Correct option is C) 1.5
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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.
2 Answers 1 views
The frequency of a light wave in a material is 2 x 10^14 Hz and wavelength is 5000 Å. The refractive index of material will be (a) 1.40
Answer is : (c) 3
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