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प्रश्न
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संबंधित प्रश्न
Draw a ray diagram to show the refraction of a monochromatic ray through a prism when it suffers minimum deviation
Draw the diagram given below and clearly show the path taken by the emergent ray.
Observe the following figure and answer the questions given under it:
1) How many times does refraction take place in the above figure?
2) What happens to the ray of light when it passes from air to glass?
3) What happens to the ray of light when it passes from glass to air?
4) What are the rays AB and CD in the figure called?
5) Define refraction.
In the fig., PO is a ray of light incident on a rectangular glass block.
(a) Complete the path of the ray through the block.
(b) In the diagram, mark the angle of incidence (i) and the angle of refraction (r) at the first interface. How is the refractive index of glass related to the angles I and r?
(c) Mark angle of emergence by the letter e. How are the angles i and e related?
(d) Which two rays are parallel to each other? Name them.
(e) Indicate in the diagram the lateral displacement between the emergent ray and the incident ray.
A total reflecting equilateral prism can be used to deviate a ray of light through:
Name one main factor on which the direction of bending of a ray of light depends.
A fish swimming in a pond seems nearer than it really is. Explain.
Write a relation between the angle of incidence (i), angle of emergence (e), angle of the prism (A), and angle of deviation (d) for a ray of light passing through an equilateral prism.
Light passes through a rectangular glass slab and through a triangular glass prism. In what way does the direction of the two emergent beams differ and why?
Which colour of white light travels fastest in any medium except air?
