Exam
Chemistry
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 _____________. (Nearest integer)
(h = 6.63 1034 Js, c = 3.00 108 ms1)
(h = 6.63 1034 Js, c = 3.00 108 ms1)
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