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प्रश्न
The process of separation of light into its component colours while passing through a medium is called _______.
पर्याय
reflection of light
refraction of light
dispersion of light
absorption of light
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उत्तर
The process of separation of light into its component colours while passing through a medium is called dispersion of light.
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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.
Draw a ray diagram to show the dispersion of white light.
State the cause of dispersion of white light
Which is refracted most by a prism : red light or violet light? Explain why?
Which is optically denser: water or air? Give reason
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
Define the term dispersion of 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)?
Complete the ray diagram given below to show the nature of light produced on the screen.
Refer to fig
(i) Name the lens L.
(ii) What are the points O, O' called?
(iii) Complete the diagram to form the image of the object AB.
(iv) Write three characteristics of the image.
The phenomenon of splitting of light into its component colours is ___________ .
State two properties of ultra-violet radiations which differ from visible light.
Sunlight entering through a narrow aperture falls on a prism. Draw a neat labelled ray diagram to show the formation of the spectrum on a screen. Name the colour obtained nearer the base of the prism.
What is dispersion? Explain in detail.
The phenomena of light involved in the formation of rainbow are ______.
The splitting of white light into its component colours is called ____________.
What is Newton’s disc?
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.
What is a rainbow?
