If the radiant energy received from an electric bulb per second is $25 \ J/s$ and the velocity of electromagnetic waves is $c = 3 \times 10^8 \ m/s$,then the force exerted on the surface in one second is:
- A$8.33 \times 10^{-8} \ J$
- B$8.33 \times 10^{-8} \ N$
- C$75 \times 10^{-8} \ N$
- D$25 \times 10^{-8} \ N$
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