The amount of energy received in unit time on a unit area perpendicular to the sun’s direction at the mean distance of the earth from the sun is called ________(a) Solar radiation(b) Solar constant(c) Intensity of solar radiation(d) Air MassI had been asked this question in my homework.My doubt is from Solar Constant in division Solar Energy of Energy Engineering

The amount of energy received in unit time on a unit area perpendicula

1.	The amount of energy received in unit time on a unit area perpendicular to the sun’s direction at the mean distance of the earth from the sun is called ________(a) Solar radiation(b) Solar constant(c) Intensity of solar radiation(d) Air MassI had been asked this question in my homework.My doubt is from Solar Constant in division Solar Energy of Energy Engineering
Answer» Correct answer is (b) Solar constant For explanation: The AMOUNT of energy received in unit time on a unit area perpendicular to the sun’s direction at the MEAN distance of the earth from the sun is CALLED solar radiation. It is defined as the solar energy receiving at the TOP of the atmosphere, denoted by Isc.

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