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प्रश्न
Why does the sky appear dark (or black) to an astronaut instead of blue?
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उत्तर
The sky appears dark (or black) to an astronaut instead of blue because there is no atmosphere containing air molecules in outer space to scatter sunlight.
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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 scattering of light, explain the reason for the difference in colours of the Sun as it appears during sunset/sunrise and noon.
Explain giving reason why the sky appears blue to an observer from the surface of the earth? What will the colour of the sky be for an astronaut staying in the international space station orbiting the earth? Justify your answer giving reason.
What information do we get about sunlight from the formation of a rainbow?
Name the scientist who discovered that sunlight consists of seven colours.
Which colour of the spectrum has
longest 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.
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 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
What is the colour of the clear sky during day time? Give reason for it.
