Question

During sunrise or sunset, the sun appears bigger because the rays of light coming from it pass through :

• A. larger length of atmosphere
• B. smaller length of atmosphere
• C. the earth gets closer to sun
• D. none of these

Answer 1

The correct option is A

larger length of atmosphere

The explanation for the correct option:

Option A is correct

• The Atmospheric refraction is the main cause of the Sun being seen while it is still below the horizon.
• The light which is from the lower side (edge) of the Sun disk is must be refracted more than from its upper edge.

The explanation for the incorrect option:

Option B is correct

• The length of the atmosphere of the Earth is not smaller.
• Earth's atmosphere has five major and several secondary layers. (troposphere, stratosphere, mesosphere, thermosphere, and exosphere.)

Option C is correct

• The distance between them does not change. Because the earth is revolving in a particular path that is not changed.
• So, the distance between the Earth and the Sun does not change.

Option D is correct

Because option A is correct.