Advertisements
Advertisements
प्रश्न
The clouds are seen white. Explain
Advertisements
उत्तर
The clouds are nearer the earth surface and they contain dust particles and aggregates of water molecules of sizes bigger than the wavelength of visible light. Therefore, the dust particles and water molecules present in clouds scatter all colours of incident white light from sun to the same extent and hence when the scattered light reaches our eye, the clouds are seen white.
APPEARS IN
संबंधित प्रश्न
Why does the sun appear reddish early in the morning? Will this phenomenon be observed by an observer on the moon? Justify your answer with a reason.
Why does the sun seem to rise two minutes before the actual sunrise and set two minutes after the actual sunset ? Explain with the help of labelled diagram.
How many colours are there in a full spectrum of white light? Write the various colours of spectrum in the order, starting with red.
Which phenomenon makes us see the sun:
a few minutes before actual sunrise?
What is meant by advance sunrise and delayed sunset? Draw a labelled diagram to explain these phenomena.
A beam of blue, green, and yellow light passes through the earth's atmosphere. Name the colour which is scattered the least.
Blue litmus is added to two test tubes A and B containing dilute HCl and NaOH. Answer respectively. In which test tube a colour change will be observed? State the colour change and give its reason.
At noon the sun appears white as:
The bluish colour of water in deep sea is due to ____________.
Why is the colour of the clear sky blue?
