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प्रश्न
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
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उत्तर
(i) There is no absorption of light in a prism and hence the image is brighter.
(ii) Image is sharper in case of the prism.
संबंधित प्रश्न
Define critical angle for a given medium.
Plot a graph between
Angle of incidence versus angle of refraction.
Make the correct choices for each of the following :
Total Internal reflection takes place when
(where ∠i = angle of incidence, ∠r = angle of refraction, ∠C = critical angle)
Write down the relationship between the critical angle and the refractive index of the medium.
How are critical angles related to the refractive index of the medium?
What is meant by the term ‘critical angle’?
A Rainbow is a beautiful natural phenomenon formed because of the following:
The diagram below shows a fish in the tank and its image seen on the surface of the water.
Name the phenomenon responsible for the formation of this image.
When a ray of light is refracted from one medium to another, then the wavelength changes from 6000 Å to 4000 Å. The critical angle for the interface will be ______.
