Physics · 2022
JEE Main · 28 July 2022, Shift 2 · Q15
Sun light falls normally on a surface of area 36 cm^2 and exerts an average force of 7.2 × 10^-9 N within a time period of 20 minutes. Considering a…
Sun light falls normally on a surface of area $\displaystyle 36 \mathrm{~cm}^2$ and exerts an average force of $\displaystyle 7.2 \times 10^{-9} \mathrm{~N}$ within a time period of $\displaystyle 20$ minutes. Considering a case of complete absorption, the energy flux of incident light is
Official answer
(4)
$\displaystyle 0.06 \mathrm{~W} / \mathrm{cm}^2$
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.