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प्रश्न
What is a rainbow? Draw a labelled diagram to show the formation of a rainbow.
Draw a labelled ray diagram to show the formation of a rainbow.
उत्तर
The rainbow is a natural phenomenon in which white sunlight splits into beautiful colors by water droplets, which remain suspended in the air after the rain. It appears as a circular arc of various hues, with violet on the inside and red on the outside. Only when the sun is behind the observer and the rain is in front of the observer can a rainbow be seen. Red, orange, yellow, green, blue, indigo, and violet are the seven colours that make up the rainbow, and they are arranged from the outer to the inner edge.
Formation of a rainbow:
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संबंधित प्रश्न
What did Newton demonstrate by his experiments with the prism?
Where in nature can you find evidence that white sunlight may be made of different colours?
Which effect is illustrated by the observation that when a beam of sunlight enters a dusty room, then its path becomes visible to us.
The sky appears blue because some of the blue component of sunlight is scattered by:
(a) gas molecules present in air
(b) dust particles present in air
(c) water droplets suspended in air
(d) soot particles present in air
The colour of sky, in direction other than of the sun, is blue. Explain.
In white light of sun, maximum scattering by the air molecular present in the earth’s atmosphere is for ______.
Using the phenomenon of scattering of light, explain why there is a difference in the colour of the sun as it appears during sunrise and at noon.
Name the point on the lens through which a ray of light passes undeviated.
In the atmosphere which colour of light gets scattered the least?
The clear sky appears blue because
