Advertisements
Advertisements
प्रश्न
Draw a neat and labelled diagram of the experimental set up for observing the scattering of light in a colloidal solution of sulphur to show how the sky appears blue, and the sun appears red at sunrise and sunset.
उत्तर
APPEARS IN
संबंधित प्रश्न
Which colour of light has the shorter wavelength − red or violet?
How many colours are there in a full spectrum of white light? Write the various colours of spectrum in the order, starting with red.
Where in nature can you find evidence that white sunlight may be made of different colours?
Which phenomenon makes us see the sun:
a few minutes after actual sunset?
What is the colour of the sunlight scattered by the air molecules in the atmosphere?
Which of the two is scattered more easily, light of shorter wavelengths or light of longer wavelengths?
What is tyndall effect? Explain with an example.
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
Draw a labelled diagram to show (i) reddish appearance of the sun at the sunrise or the sunset and (ii) white appearance of the sun at noon when it is overhead.
What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
