Amount of solar energy received on the earth's surface

Question:

Amount of solar energy received on the earth's surface per unit area per unit time is defined a solar constant. Dimension of solar constant is:

  1. $\mathrm{ML}^{2} \mathrm{~T}^{-2}$

  2. $\mathrm{MLT}^{-2}$

  3. $\mathrm{M}^{2} \mathrm{~L}^{0} \mathrm{~T}^{-1}$

  4. $\mathrm{ML}^{0} \mathrm{~T}^{-3}$


Correct Option: , 4

Solution:

$S=\frac{P}{A}=\frac{M L^{2} T^{-3}}{L^{2}}=M T^{-3}$

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