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प्रश्न
Which colour of light travels fastest in any medium except air?
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उत्तर
The red colour of light will travel the fastest in any medium.
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संबंधित प्रश्न
Explain how spectrum is formed.
Select from the following the best experimental setup for tracing the path of a ray of light passing through a rectangular glass slab.
(a) P
(b) Q
(c) R
(d) S
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.
If the speed of light in vacuum is 3 × 108 ms−1, find the speed of light in a medium of absolute refractive index 1.5.
State the dependence of angle of deviation on the wavelength of light
Write a relationship between the angle of incidence and angle of refractions for a given pair of media.
When a lighted candle is held in front of a thick plane glass mirror, several images can be seen, but the second image is the brightest, give reason.
How does the angle of minimum deviation produces by a prism change with increase in :
the refracting angle of prism?
Why does the sun appear bigger during sunset or sunrise?
Name two instruments of the total refracting prism in which is used.
