najmsheikh5891 najmsheikh5891
  • 09-01-2024
  • Physics
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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)

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