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Q. The dimensions of solar constant (energy falling on earth per second per unit area) are

Physical World, Units and Measurements

Solution:

Solar constant $[S]=\frac{\text { Energy }}{\text { Area } \times \text { Time }}$
$=\frac{M L^{2} T^{-2}}{L^{2} T} \Rightarrow \left[M T^{-3}\right]$