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प्रश्न
What is the refractive index of vacuum
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उत्तर
Unity
संबंधित प्रश्न
Explain how the formation of a rainbow occurs.
State the dependence of angle of deviation On the refractive index of the material of the prism.
For which colour of white light, is the refractive index of a transparent medium the most?
Fill in the blanks to complete the following sentence
When light travels from a denser to a rarer medium, its speed ……………….
Observe the figure and write accurate conclusion regarding refraction of light.
A ray of light passes from water to air. How does the speed of light change?
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.
State the factors on which the angle of deviation depends.
A ray of light moves from a rare medium to a dense medium as shown in the diagram below. Write down the number of the ray which represents the partially reflected ray.
Trace a ray of light incident at 30° on a surface if travelling from glass to air. What is the angle of refraction in this case? (R.I. for glass = 3/2).
