Electromagnetic wave of intensity $1400\, W/m^2$ falls on metal surface on area $1.5\, m^2$ is completely absorbed by it. Find out force exerted by beam
Electromagnetic wave of intensity $1400\, W/m^2$ falls on metal surface on area $1.5\, m^2$ is completely absorbed by it. Find out force exerted by beam
- A
$14 \times 10^{-5} \, N$
- B
$14 \times 10^{-6} \, N$
- C
$7 \times 10^{-5} \, N$
- D
$7 \times 10^{-6} \, N$
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