Question

At noon the sun appears white because:
A. Light is least scattered.
B. All the colours of white light are scattered away.
C. Blue colour is scattered the most.
D. Red colour is scattered the most.

Answer 1

Hint: The scattering of light gives us the solution to this problem .

Complete step by step solution:
At noon we know that the sun is overhead and when the sun is overhead , it has less air to travel through. We also know that scattering occurs due to dust and other suspended particles in air . So, scattering is reduced if the distance to be travelled in air is reduced. Therefore, the least amount of scattering occurs which results in the appearance of white light.

Thus, option A is the correct answer.

Additional information: For the same reason, at dusk the sun appears to be red in colour.

Note: White light contains all the seven colours of the visible region.