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What is total amount of solar energy received by earth and atmosphere?(a) 3.8 X 1024 J/year(b) 9.2 X 1024 J/year(c) 5.4 X 1024 J/year(d) 2.1 X 1024 J/yearI got this question during an interview.Enquiry is from Solar Radiation topic in section Solar Energy of Energy Engineering

Answer»

Correct choice is (a) 3.8 X 1024 J/year

For explanation: Even if we use 5% of this energy, it is more than 50 TIMES our REQUIREMENT. The total solar radiation absorbed by the earth and its atmosphere is 3.8 X 1024 Joules/year. EXCEPT that it is DISTRIBUTED over the AREA of earth.



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