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प्रश्न
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संबंधित प्रश्न
Draw diagram to illustrate the total internal reflection.
(i) Define critical angle.
(ii) State one important factor which affects the critical angle of a given medium.
Express the refractive index μ of a medium in terms of the angle of incidence i in air and the angle of refraction r in a denser medium.
A ray of light incident at an angle of incidence ‘i’ passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges from the prism at an angle of emergence ‘e’.
What can you say about the value of the angle of deviation in such a situation?
How is the critical angle of a material related to its refractive index?
Observe the given figure and write appropriate phenomenon of light in the box.
The twinkling effect of star light is due to ______.
Optical Fibres are based on the phenomenon of dispersion.
A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will now suffer ______.
State two differences between normal reflection and total internal reflection.
