Question

Assertion:On the mid day the color of the sunlight becomes white
Reason:No atmospheric refraction is caused due to overhead sun
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation for A
A is true R is false
A and R both are correct ​

Answer 1

Answer:

A

Explanation:

We know that the earth's atmosphere breaks sunlight into 7 colours at midday sunlight is white because sunlight travels a shorter distance through the atmosphere and the sunlight does not get scattered so we see sunlight as white light during the midday

Answer 2

Both assertion and reason are true and reason is the correct explanation of assertion.

What is atmospheric refraction?

Atmosphere consists of medium or varying densities, and this is why when rays from sun passes through these series of mediums, it undergoes refraction due to different refractive index of the mediums.

What happens on midday?

During the midday, the sun is directly above the head and the rays coming from sun is incident perpendicularly on the different densities of atmospheric mediums.

Why sunlight appears white during midday?

• When sunlight passes through atmospheric medium of different densities, its incidence is normal to the interfaces of the mediums.
• So, there is no refraction of sunlight and this is why sun appears white.