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प्रश्न
In the following diagram, the correctly marked angles are
(A) All
(B) Only ∠i and ∠A
(C) ∠i, ∠r and ∠A
(D) ∠i, ∠A and ∠D
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उत्तर
Angle i by conventions represents the angle of incidence which is formed between the incident ray and the normal. From the given figure it is clear that angle i is correctly marked.
Angle r by convention represents angle of refraction which is formed between the refracted ray and the normal. From the given figure it is clear that angle r is correctly marked.
Angle e by convention represents angle of emergent which is formed between the emergent ray and the normal. But in the given figure it is shown between the emergent ray and the incident ray. Therefore, it is incorrectly marked.
Angle D by conventions represents the angle of deviation which is formed between the emergent ray and the incident ray. But in the given figure it is shown between the emergent ray and the normal. Therefore, it is incorrectly marked.
Angle A represents angle of prism and it is correctly marked.
Hence, the correct answer is option (C).
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संबंधित प्रश्न
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
As light rays pass from air into a glass prism, are they refracted towards or away from the normal?
The colour of white light which suffers the maximum bending (or maximum refraction) on passing through a glass prism is:
(a) yellow
(b) orange
(c) red
(d) violet
The colour of white light which is deviated the maximum on passing through the glass prism is:
(a) blue
(b) indigo
(c) red
(d) orange
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
- A beam of monochromatic light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
- If white light is used in the same way as in part (a) above, what change do you expect in the emergent beam?
- What conclusion do you draw about the nature of white light in part (b)?
The wavelengths of violet and red light are 4000 Å and 8000 Å respectively. Which of the two has the higher frequency?
State two properties of ultra-violet radiations which differ from visible light.
The sunlight can be split into its constituent colors using ______.
Why do we see a rainbow in the sky only after rainfall?
