Electromagnetic radiation with energy flux `50W cm^(-2)` is incident on a totally absorbing surface normally for `1 hour`: If the surface has an area of `0.05m^(2)`, then the avergae force due to the radiaton pressure, on it is,A. `8.3xx10^(-7)N`B. `8.3xx10^(-5)N`C. `1.2xx10^(-7)N`D. `1.2xx10^(-5)N`

Electromagnetic radiation with energy flux `50W cm^(-2)` is incident o

1.	Electromagnetic radiation with energy flux `50W cm^(-2)` is incident on a totally absorbing surface normally for `1 hour`: If the surface has an area of `0.05m^(2)`, then the avergae force due to the radiaton pressure, on it is,A. `8.3xx10^(-7)N`B. `8.3xx10^(-5)N`C. `1.2xx10^(-7)N`D. `1.2xx10^(-5)N`
Answer» Correct Answer - B Force `F=(IA)/(C )`

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