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प्रश्न
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उत्तर
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संबंधित प्रश्न
Draw the diagram of a right-angled isosceles prism which is used to make an invented image erect.
(i) Define critical angle.
(ii) State one important factor which affects the critical angle of a given medium.
Plot a graph between
Angle of incidence versus angle of reflection,
How does a ray of light bend when it travels from denser to rarer medium.
Write down the relationship between the critical angle and the refractive index of the medium.
Name the factors affecting the critical angle for the pair of media.
Choose the correct option.
Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in
Which of the following is not involved in formation of a rainbow?
Write any two uses of total internal reflection.
A light is entering from one medium refractive index `("RI" =5/3)` to another medium at an angle 30°. The angle of refraction for other medium is sin-1 `(5/6)`. then the increase in angle of incidence is ______ such that the ray of light reflected back into the same medium.
