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प्रश्न
Comment on the statement ‘The refractive index of glass is 3/2.’
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उत्तर
It means that the speed of light in glass is 2/3rd the speed of light in the air (or vacuum).
संबंधित प्रश्न
Why do we get a spectrum of seven colors when white light is dispersed by a prism?
The following diagram shows a 60°, 30°, 90° glass prism of critical angle 42°, Copy the diagram and complete the path of incident ray AB emerging out of the prism marking the angle of incidence on each surface.

What is meant by the statement the critical angle for diamond is 24°?
(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)` .
Fill in the blank to complete the following sentence:
When light travels from a rarer to a denser medium, it bends ...........
Write a relation between the angle of incidence (i), angle of emergence (e), angle of the prism (A), and angle of deviation (d) for a ray of light passing through an equilateral prism.
What is the total reflecting prism?
Name two instruments of the total refracting prism in which is used.
