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प्रश्न
Define critical angle for a given medium.
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उत्तर
When a ray of light propagates from a denser medium to a rarer medium, the angle of incidence for which the angle of refraction is 90° is called the critical angle.
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संबंधित प्रश्न
The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.
(i) Define critical angle.
(ii) State one important factor which affects the critical angle of a given medium.
How does a ray of light bend when it travels from rarer to denser medium
How are critical angles related to the refractive index of the medium?
Name the factors affecting the critical angle for the pair of media.
Which of the following is not involved in formation of a rainbow?
Optical fibre communication uses the principle of ______.
The twinkling effect of star light is due to ______.
Which of the following statements about total internal reflection is true?
