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प्रश्न
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
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उत्तर
Angle of deviation is the angle which the emergent ray makes with the direction of incident ray.
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संबंधित प्रश्न
Total internal reflection can take place only if ______.
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 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’.
How is the angle of emergence ‘e’ related to the angle of incidence ‘i’?
Choose the correct option.
Angles of deviation for extreme colours are given for different prisms. Select the one having maximum dispersive power of its material.
For a ray of light, the critical angle is minimum when it travels from ______.
Total internal reflection can take place only if light is travelling from ______.
Optical fibre communication uses the principle of ______.
The twinkling effect of star light is due to ______.
The angle of incidence at which the angle of refraction is Q£ is called the critical angle.
State the condition under which total internal reflection occurs. Give the mathematical expression for total internal reflection.
