(b) 1.34 kW m-2
Reason — The average solar energy reaching the upper atmosphere of earth per second on an area of 1 metre2 is called solar constant and is estimated to be 1.34 kW m-2.
(b) 1.34 kW m-2
Reason — The average solar energy reaching the upper atmosphere of earth per second on an area of 1 metre2 is called solar constant and is estimated to be 1.34 kW m-2.
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