Advertisements
Advertisements
प्रश्न
The clouds are seen white. Explain
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
We can see the sun before the actual sunrise by about:
(a) 5 minutes
(b) 2 minutes
(c) 2 hours
(d) 20 minutes
What colour does the sky appear to an astronaut?
Why does the sky appear dark (or black) to an astronaut instead of blue?
Out of blue light and red light, which one is scattered more easily?
The red colour of the sun at the time of sunrise and sunset is because:
(a) red colour is least scattered
(b) blue colour is least scattered
(c) red colour is most scattered
(d) blue colour is most scattered
The danger signal is red. Why?
Explain in brief the reason for the following :
Advanced sunrise
Explain in brief the reason for the following :
Delayed sunset
What is meant by advance sunrise and delayed sunset? Draw a labelled diagram to explain these phenomena.
The clear sky appears blue because
