The number of photons emitted by a monochromatic (single frequency) infrared range finder of pow...

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The number of photons emitted by a monochromatic (single frequency) infrared range finder of power \( 1 \mathrm{~mW} \) and wavelength of \( 1000 \mathrm{~nm} \), in 0.1 second is \( x \times 10^{13} \). The value of \( \mathrm{x} \) is
\[
\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}, \mathrm{c}=3.00 \times 10^{8} \mathrm{~ms}^{-1}\right)
\]
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