Question

The sun is seen before the actual sunrise because of
a.Reflection
b.Refraction
c.Scattering of light
d.Rectilinear propagation of light

Answer 1

Answer:

b. Refraction

Explanation:

correct answer

Answer 2

$\large\boxed{\fcolorbox{blue}{yellow}{Answer }}$

b. Refraction

$\large\boxed{\fcolorbox{blue}{yellow}{Explanation }}$

1. The earth is surrounded by an atmosphere which is denser near the surface of the earth.

2. When the rays of light from the Sun enter the earth's atmosphere from outer space, they travel from a rarer medium to a denser medium.

3. Hence, they bend towards the normal on refraction.

4. Hence, even when th sun is below the horizon while rising or setting, its rays reach is due to refraction and it appears to be on the horizon.

Therefore, the sun is seen before the actual sunrise because of refraction.

Hope it helps!

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