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[" 17.The number of photons of wavelengt...

[" 17.The number of photons of wavelength "540nm],[" emitled per second by an electric bulb of power "],[100W" is approximately (taking "h=6times10^(-34)Js)],[[" (a) "4times10^(16)," (b) "4times10^(10)],[" (c) "3times10^(20)," (d) "3times10^(8)]]

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The number of photons of wavelength 540 nm emitted per second by an electric bulb of power 100 W is (taking h = 6 xx 10^(-34) sec )

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