Sun appears red at sunrise and sunset. This is due to light having _________ getting scattered away.

all frequencies

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lower frequencies

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longer wavelengths

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shorter wavelengths

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Solution

The correct option is D
shorter wavelengths

During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon. Light with lower frequencies are easily scattered. Therefore, light other than red is mostly scattered away. Most of the red light, which is the least scattered, enters our eyes. Hence, the sun and the sky appear red.

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Similar questions

(a) 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.
(b) Out of blue light and red light, which one is scattered more easily ?
(c) Which component of sunlight is scattered away when the sun appears red at sunrise or sunset ?
(d) What causes the scattering of blue component of sunlight in the atmosphere ?

Q. 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

Sun appears red at sunrise and sunset. This is due to light having

shorter wavelengths gets scattered away.

longer wavelengths gets scattered away.

lower frequencies gets scattered away.

all frequencies gets scattered away.

The sky appears blue and red (during sunrise and sunset). It is due to the scattering of light by the

Q. The sky appears red at sunrise and sunset. Because the red light scatters less and enter our eyes.

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