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Find the numbers of photons emitted …

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Find the numbers of photons emitted per second by a bulb of ? watt, emitting light of wave 400 Nano metres (nm)

    • Posted by Satyam Shukla 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Maitry Rajpoot 7 years, 5 months ago

    Wavelenght = 400×10^-9m C= 3×10^8 Energy = hc/lemda 6.6×10^-34 × 3×10^8 / 400×10^-9 =49.695×10^-19 No of protons emitted = 100/49.695×10^-19 = 2.012×10^20s

    1Thank You

    Aditya Sinha 7 years, 6 months ago

    Formula of no. of photons emiited:- Energy=hc/lamda.And energy=power×time.This way you can easily find out to no. of photon emitted.

    1Thank You

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