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प्रश्न
Study the following ray diagram:
In this diagram, the angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by
(A) y, p, z
(B) x, q, z
(C) p, y, z
(D) p, z, y
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उत्तर
Angle p is the angle of incidence since this angle is formed between the incident ray and the normal.
Angle y is the angle of emergence as it is formed between the emergent ray and the normal.
and angle z is the angle of deviation as it is formed between the emergent ray and the incident ray.
Hence, the correct answer is p, y, z
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संबंधित प्रश्न
A student traces the path of a ray of light through a triangular glass prism for different values of angle of incidence. On analyzing the ray diagrams, which one of the following conclusions is he likely to draw?
(A) The emergent ray is parallel to the incident ray.
(B) The emergent ray bends at an angle to the direction of the incident ray.
(C) The emergent ray and the refracted ray are at right angles to each other.
(D) The emergent ray is perpendicular to the incident ray.
The diagram below shows the path taken by a narrow beam of yellow monochromatic light passing through an equiangular glass prism. If the yellow light is replaced by a narrow beam of white light incident at the same angle, draw another diagram to show the passage of white light through the prism and label it to show the effect of prism on the white light.
- 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)?
How can the presence of ultraviolet radiation be detected?
Distinguish between an impure spectrum and a pure spectrum.
When white light enters a glass prism from the air, the angle of deviation is least for ____________.
The splitting of white light into its component colours is called ____________.
Why do we see a rainbow in the sky only after rainfall?
In dispersion, the color of light that will bend more is ______.
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:
