Sun light falls normally on a surface of area $36\,cm ^{2}$ and exerts an average force of $7.2 \times 10^{-9}\,N$ within a time period of $20$ minutes. Considering a case of complete absorption, the energy flux of incident light is.
Sun light falls normally on a surface of area $36\,cm ^{2}$ and exerts an average force of $7.2 \times 10^{-9}\,N$ within a time period of $20$ minutes. Considering a case of complete absorption, the energy flux of incident light is.
- [JEE MAIN 2022]
- A
$25.92 \times 10^{2}\,W / cm ^{2}$
- B
$8.64 \times 10^{-6}\,W / cm ^{2}$
- C
$6.0\,W / cm ^{2}$
- D
$0.06\,W / cm ^{2}$
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