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प्रश्न
Draw diagram to illustrate the total internal reflection.
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उत्तर
When the incidence angle is greater than the critical angle, i.e., in the case of total internal reflection.
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संबंधित प्रश्न
You are given prisms made of crown glass and flint glass with a wide variety of angles. Suggest a combination of prisms which will
(a) deviate a pencil of white light without much dispersion,
(b) disperse (and displace) a pencil of white light without much deviation.
A ray of light travels from water to air as shown in the diagram given below :
1) Copy the diagram and complete the path of the way. Given the critical angle for water is 48°.
2) State the condition so that internal reflection occurs in the above diagram.
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
Define critical angle for a given medium.
Plot a graph between
Angle of incidence versus angle of refraction.
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
The angle of minimum deviation produced by a thin glass prism in air is 'δ'. If that prism is immersed in water, the angle of minimum deviation will be ______.
( aμg = refractive index of glass w.r.t, air aμw = refractive index of water w.r.t. air)
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.
Find the value of θ in the given figure.
