Advertisements
Advertisements
प्रश्न
The colour of sky, in direction other than of the sun, is blue. Explain.
Advertisements
उत्तर
As the light travels through the atmosphere, it gets scattered in different directions by the air molecules present in its path. The blue light due to its short wavelength is scattered more as compared to the red light of long wavelength. Thus the light reaching our eye directly from the sun is rich in red colour, while the light reaching our eye from all other directions is the scattered blue light. Therefore, the sky in a direction other than in the direction of the sun is seen blue.
APPEARS IN
संबंधित प्रश्न
What is meant by scattering of light? Use this phenomenon to explain why the clear sky appears blue or the Sun appears reddish at sunrise.
With the help of a labelled diagram, explain why the sun appears reddish at the sun-rise and the sun-set.
What information do we get about sunlight from the formation of a rainbow?
Which colour of the spectrum has
shortest wavelength?
How many colours are there in a full spectrum of white light? Write the various colours of spectrum in the order, starting with red.
Explain why, if we look at objects through the hot air over a fire, the objects appear to be moving (or shaking) slightly.
What is the colour of the sunlight scattered by the air molecules in the atmosphere?
Twinkling of stars is due to atmospheric
The clear sky appears blue because
Is the position of a star as seen by us its true position? Justify your answer.
