The Sun is lower in the sky during the winter than it is during the summer. How does this change affect the flux of sunlight hitting a given area on the surface of the Earth?
Brenda Leach
Answered question
2022-11-24
Answer & Explanation
Bryson Carlson
Beginner2022-11-25Added 10 answers
The luminous flux on a given area is decreased when the sun is low in the sky, cause the angle between the rays of the sun and the local area vector, dA, is greater than zero. The cosine of this angle is reduced. But if the sun is lower in the sky, then the angle of the elevation of sun rays decreases. It causes the angle between the sun rays and the area vector to increase.
Sooooo as angle increases then value of cos function decreases and hence flux will decrease.
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