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प्रश्न
For which colour of white light the refractive index of a transparent medium the most? Give the reason for your answer.
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उत्तर
The refractive index of a transparent medium is least for the red light.
संबंधित प्रश्न
What is a spectrum?
How is the refractive index of a medium related to the speed of light in it?
Observe the figure and write accurate conclusion regarding refraction of light.
Fig shows a lens as a combination of a glass block and two prisms.
(i) Name the lens formed by the combination.
(ii) what is the XX' called?
(iii) Complete the ray diagram and show the path of the incident ray PQ after passing through the lens.
(iv) The final emergent ray will either meet XX' at a point or appear to come from a point on XX'. what is the point called?
How does the deviation produced by a prism depend on the wavelength of incident light?
The critical angle for glass-air interface is :
A ray of light passes from water to air. How does the speed of light change?
Comment on the statement ‘The refractive index of glass is 3/2.’
Explain briefly what causes the twinkling of stars at night.
Draw ray of light bending towards the normal while passing from air to glass. Label your diagrams.
