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प्रश्न
Write the necessary conditions for the phenomenon of total internal reflection to
occur ?
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उत्तर
Necessary conditions for total internal reflection to occur are:
(i) The incident ray on the interface should travel in optically denser medium.
(ii) The angle of incidence should be greater than the critical angle for the given pair of optical media.
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संबंधित प्रश्न
The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P are shown up to the water surface
1) Show in the diagram the path of these rays after striking the water surface.
The Critical Angle for the water-air surface is 48°.
2) Name the phenomenon which the rays B and D exhibit.
What is total internal reflection?
State two conditions necessary for total internal reflection to occur.
Prove the statement.
A rainbow is the combined effect of the refraction, dispersion, and total internal reflection of light.
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Observe the given figure and write appropriate phenomenon of light in the box.
The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur.
A jar of height h is filled with a transparent liquid of refractive index µ (Figure). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically about the centre, the dot is invisible.
