Insolation is less ____________(a) when the sun is low(b) when the sun right above head(c) at night(d) at sun riseI got this question in unit test.The query is from Solar Radiation topic in chapter Solar Energy of Energy Engineering

Insolation is less ____________(a) when the sun is low(b) when the sun

1.	Insolation is less ____________(a) when the sun is low(b) when the sun right above head(c) at night(d) at sun riseI got this question in unit test.The query is from Solar Radiation topic in chapter Solar Energy of Energy Engineering
Answer» CORRECT choice is (a) when the SUN is low Best EXPLANATION: The insolation at a given point or location on the earth’s surface depends among other factors, on the altitude of the sun in the sky. As a result of absorption and SCATTERING, the insolation is less when the sun is low in the sky than when it is higher.

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