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Question
The process of separation of light into its component colours while passing through a medium is called _______.
Options
reflection of light
refraction of light
dispersion of light
absorption of light
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Solution
The process of separation of light into its component colours while passing through a medium is called dispersion of light.
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RELATED QUESTIONS
State the cause of dispersion of white light passing through a glass prism. How did Newton show that white light of sun contains seven colours using two identical glass prisms. Draw a ray diagram to show the path of light when two identical glass prisms are arranged together in inverted position with respect to each other and a narrow beam of white light is allowed to fall obliquely on one of the focus of the first prism.
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.
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
In the formation of spectrum of white light by a prism:
which colour is deviated most?
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
What happens when a ray of ordinary light is passed through a triangular glass prism?
What acts as tiny prisms in the formation of a rainbow?
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 splitting of white light into its constituent colours is called .............
How does the speed of light determine the optical density of a medium?
Which is optically denser: water or air? Give reason
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)?
A ray of white light is passed through a glass prism and a spectrum is obtained on a screen.
- Name the seven colours of the spectrum in order.
- Do the colours have the same width in the spectrum?
- Which of the colour of the spectrum of white light deviates (i) the most, (ii) the least?
An object is placed in front of a converging lens and in front of a diverging lens as in fig.
(a)Complete the ray diagram to obtain an image.
(b)Compare the nature of image formed by both the lenses in the above case.
Suggest one way, in each case, by which we can detect the presence of Infrared radiations.
Which one of the following is involved for the formation of rainbow in the sky?
Curved mirrors have surfaces that are spherical, cylindrical, parabolic, and ellipsoid.
Assertion: We can see the rainbow in the sky when the rain starts falling after a spell of bright sunlight.
Reason: The rainbow is formed due to the dispersion of light.
State True or False:
"Wavelength of red light is close to 700 nm.”
