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प्रश्न
Observe the given figure and write appropriate phenomenon of light in the box.
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उत्तर
Dispersion of light
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संबंधित 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
Define the term dispersion of white light.
In the formation of spectrum of white light by a prism:
which colour is deviated least?
Name the process which is involved in the formation of a rainbow.
How does the speed of light determine the optical density of a medium?
Out of air and glass, which is optically rarer? Give reason.
In figure AO is the ray of white light falling on a prism PQR. Complete the diagram till the light emerges out from the prism and falls on the screen.
What do you understand by the term spectrum? Name the various colours present in the spectrum of sunlight.
A glass prism is able to produce the spectrum when white light passes through it, but a glass slab doesn’t produce any spectrum. Explain why it is so.
If white light is used in same way what change is expected in the emergent beam?
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:
A wave has wavelength 50Å of State its one use.
Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.
In dispersion, the color of light that will bend more is ______.
The periscope is an optical device with a polished surface that reflects the light falling on it.
Observe the given diagram and answer the questions:
- Name the process shown in the figure.
- Name the colour that deviates the most.
- Name the colour that deviates the least.
- Name any one phenomenon in nature which is based on the above process.
- Define ‘spectrum’.
Make a rainbow
Try to make your own rainbow. You can try this project in the morning or in the evening. Stand with your back towards the Sun. Take a hosepipe or a water pipe used in the garden. Make a fine spray in front of you. You can see different colours of rainbow in the spray.
