What is solar constant?
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What is Solar Constant?
The solar constant is a flux density measuring mean solar electromagnetic radiation per unit area. It is measured on a surface perpendicular to the rays, one astronomical unit from the Sun. The solar constant includes all types of solar radiation, not just the visible light.
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Solar Constant
It is a term which express the total quantum of heat energy received at the edge of the Earth's atmosphere is equal to 1.4 kilo joule/s/m². This is Known as Solar constant. The same amount of heat energy it has to cross the atmosphere before coming in contact with the surface of Earth. Some amount of heat energy is reflected back to the speace because of pollutants present and some is absorbed by the clouds present.
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