The number of photons emitted by an 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 × 10-34 Js, c = 3.00 × 108 ms-1)
The number of photons emitted by an 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 × 10-34 Js, c = 3.00 × 108 ms-1)
Asked by Shiksha User
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1 Answer
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Energy of emitted photon in 0.1 sec = 10-4 J
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