Sun appears red at sunrise and sunset. This happens because the component of light having _________, gets scattered away.

longer wavelengths

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shorter wavelengths

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lower frequencies

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all frequencies

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Solution

The correct option is B
shorter wavelengths

Sunlight consists of seven colours. Of these, red has the maximum wavelength. During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon.
Therefore, light other than red having shorter wavelengths 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. Sun appears to be red during sunset and sunrise because blue light scatters more than red light in atmosphere. (Yes/No)

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.

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

The red colour of the sun at the time of sunrise and sunset is because red colour is ___ scattered.

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