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A 25 watt bulb emits monochromatic yellow light of wavelength of 0.57um.calculate the rate of emission of quanta per second A 25 watt bulb emits monochromatic yellow light of wavelength of 0.57um.calculate the rate of emission of quanta per second
Power of bulb, P = 25 Watt = 25 Js–1energy of photon E = hc/ = 34.87*10-20 Jrate of emission of quanta per second = P/E = 7.2*1019 s-1Hope it clears.
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