We can see the sun about……….. minutes before the actual sunrise and about…………. minutes after the actual sunset because of atmospheric…………..

ATMOSPHERIC REFRACTION By actual sunrise, we mean the actual crossing of the horizon by the Sun.  The time difference between actual sunset and the apparent sunset is about 2 minutes. The...

(a) About 2 minutes  (b) About 2 minutes 

The sun can be seen about two minutes before actual sunrise because of atmospheric refraction of sun’s light as shown in the following diagram. When the sun is slightly below...

(a) This means that due to atmospheruc refraction we continue to see the sun about two minutes after the actual sunset. No such atmospheric refraction could have been possible if...

The sun and the surrounding sky appear red at sunset because at that time most of the blue color present in sunlight has been scattered out and away from our...

When the sun is overhead, then the light coming from the sun has to travel a relativity shorter distance through the atmosphere to reach us. During the shorter journey of...

At the time of sunrise and sunset, the light from sun has to travel the longest distance of atmosphere to reach the observer. The light travelling from the sun loses...

(i) Scattering of light - Phenomenon of spreading of light (diffused, reflection) by minute particles in a medium. (ii) The sky appears blue because of the blue color of sunlight scatter much...