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प्रश्न
When light travels from a rarer to a denser medium, its speed ______.
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उत्तर
When light travels from a rarer to a denser medium, its speed decreases.
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संबंधित प्रश्न
What is a spectrum?
Observe the following figure and answer the questions given under it:
1) How many times does refraction take place in the above figure?
2) What happens to the ray of light when it passes from air to glass?
3) What happens to the ray of light when it passes from glass to air?
4) What are the rays AB and CD in the figure called?
5) Define refraction.
(i) What is the relation between the refractive index of water with respect to air `("_aμ_\text(w))` and the refractive index of air with respect to water `("_\text(w)μ_ a)` .
(ii) If the refractive index of water with respect to air `("_aμ_\text(w))` is`5/3`. Calculate the refractive index of air with respect to water `("_\text(w)μ_ a)` .
Define the term refractive index of a medium. What do you understand by the statement 'the refractive index of glass is 1.5 for white light'?
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
Comment on the statement ‘The refractive index of glass is 3/2.’
Draw ray of light bending towards the normal while passing from glass to water. Label your diagrams.
