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Two isosceles right-angle glass prisms P and Q are placed near each other as shown in Fig. Complete the path of the light ray entering the prism P till it emerges out of the prism Q. - Physics

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प्रश्न

Two isosceles right-angle glass prisms P and Q are placed near each other as shown in Fig. Complete the path of the light ray entering the prism P till it emerges out of the prism Q.

 

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अध्याय 4: Refraction of Light at Plane Surfaces - Exercise 4 (D) 1 [पृष्ठ १०२]

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सेलिना Physics [English] Class 10 ICSE
अध्याय 4 Refraction of Light at Plane Surfaces
Exercise 4 (D) 1 | Q 23 | पृष्ठ १०२

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.


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.


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.


Calculate the speed of light in a medium whose critical angle is 30° ?


The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Complete the path of the ray PQ till it emerges out of the block. [Write necessary angles].


A ray of light is incident as a normal ray on the surface of separation of two different mediums. What is the value of the angle of incidence in this case?


Answer the following question.

Under what conditions are total internal reflection possible? Explain it with a suitable example.


The resultant `vec"R"` of `vec"P"` and `vec"Q"` is perpendicular to `vec"P"`. Also `|vec"P"|=|vec"R"|`. The angle between `vec"P"` and `vec"Q"` is ______.
[tan 45° = 1]


Optical fibre communication uses the principle of ______.


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 ______.


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