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प्रश्न
Which colour of white light travels fastest in any medium except air?
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उत्तर
All media except air allow red light to travel at the fastest speed.
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संबंधित प्रश्न
Draw a ray diagram to show the refraction of light through a glass slab and mark angle of refraction and the lateral shift suffered by the ray of light while passing through the slab.
Draw diagrams to show the refraction of light from glass to air. In diagram, label the incident ray, refracted ray, the angle of incidence (i) and the angle of refraction (r).
A light ray in passing from water to a medium
(a) speeds up
(b) slows down. In each case, give one example of the medium.
Which of the following is the best experimental set-up out of the four shown for tracing the path of a ray of light passing through a rectangular glass slab ?
Four students A, B, C and D traced the paths of incident ray and the emergent ray by fixing pins P and Q for incident ray and pins R and S for emergent ray for a ray of light passing through a glass slab.
The correct emergent ray was traced by the student:
(1) A
(2) B
(3) C
(4) D
Using the curve, how do you infer that for given prism, the angle of minimum deviation δmin is unique for the given light?
What is the refractive index of vacuum
Express the refractive index μ of a medium in terms of the velocity of light.
The diagram shows the path of a ray of light through a rectangular glass block placed in a liquid of uniform density.
What is the angular, deviation of the emergent ray from the glass block with respect to the incident ray?
