Question

Question!

100 points_________________________
Why the Sun appears red at sunrise and sunset?
Class 10th CBSE board
3 marks,

Please give me answer ASAP!

Answer 1

Why the Sun appears red at sunrise and sunset?

Good question,

Here is your perfect answer!

During sunrise and sunset, Sun is near the horizon.

Hence sun light rays have to travel long distance before coming on the Earth.

It causes many light rays scattered light of violet, blue, yellow, green etc, (low wavelength color) when it come in more denser.

Due to which, light rays that come on Earth are of orange and red, so it appears like reddish.

Answer 2

$\huge \bf \red{ANSWER}$

$\bf{QUESTION}$
Why the Sun appears red at sunrise and sunset?

▶ Sun appears red at sunrise and sunset because of scattering of light.

Let me explain you how.
during sunrise and sunset sun is near horizon hence light have to travel more distance.

When the light from sun starts travelling during sunrise and sunset then it crosses many mediums first opticaly rarer which is space and second opticaly denser medium which is earth's atmosphere
and also there are many optically denser things are present in atmosphere


Due to the multiple refraction of the light it starts scattering and bluish light scatter the most because its wavelength is lower than that of red and red light didn't scattered or scatter negligible.

Hence we see sun red during sunrise and sunset

THANKS