The number of photons emitted by a monochromatic (single frequency) infrared range finder of power 1 mW and wavelength of 1000 nm, in 0.1 second is x × 10¹³. The value of x is ......

(h = 6.63 x 10⁻³⁴ Js, c = 3.00 x 10⁸ ms⁻¹)