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प्रश्न
As light rays pass from air into a glass prism, are they refracted towards or away from the normal?
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उत्तर
As light rays pass from the air into a glass prism, they are refracted towards the normal because glass is denser than air.
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संबंधित प्रश्न
A narrow beam PQ of white light is passing through a glass prism ABC as shown in the diagram.
Trace it on your answer sheet and show the path of the emergent beam as observed on the screen DE.
(i) Write the name and cause of the phenomenon observed.
(ii) Where else in nature is this phenomenon observed?
(iii) Based on this observation, state the conclusion which can be drawn about the constituents of white light.
In the following ray diagram the correctly marked angle are:
(a) ∠i and ∠e
(b) ∠A and ∠D
(c) ∠i, ∠e and ∠D
(d) ∠r, ∠A and ∠D
The path of a ray of light passing through a glass prism is shown below:
In this diagram, the angle of prism, angle of incidence, angle of emergence and angle of deviation, respectively, have been represented by:
(A) O, Y, Z and N,
(B) P, Y, M and Z,
(C) O, X, M and Z,
(D) P, X, Z and N.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
Why do different colours of white light bend through different angles with respect to the incident beam of light?
Which is refracted most by a prism : red light or violet light? Explain why?
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
Name the process which is involved in the formation of a rainbow.
The splitting of white light into its constituent colours is called .............
State the speed of light in (a) air, (b) water, and (c) glass
- 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)?
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
A wave has wavelength 50Å of State the speed in vacuum.
Draw a neat and labelled diagram for dispersion of light.
Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
The splitting of white light into its component colours is called ____________.
Which one of the following is involved for the formation of rainbow in the sky?
A prism of refractive index `sqrt2` and refracting angle A produces minimum deviation δm of a ray on one face at an angle of incidence 45°, The values of A and δm are, respectively ______.
