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JEE PYQ: Units And Dimensions Question 8

Question 8 - 2020 (03 Sep Shift 2)

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) $ML^2T^{-2}$

(2) $ML^0T^{-3}$

(3) $M^2L^0T^{-1}$

(4) $MLT^{-2}$

Show Answer

Answer: (2)

Solution

Solar constant $= \frac{\text{Energy}}{\text{Time} \times \text{Area}} = \frac{M^1L^2T^{-2}}{TL^2} = M^1L^0T^{-3}$.


Learning Progress: Step 8 of 23 in this series