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How many photons of frequency 10^(14) Hz will make up 19.86 J of energy ? |
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Answer» Solution :Total energy emitted per second = Power `xx` time 19.86 J = Power `xx` 1s `therefore` Power = 19.86 W Number of photons, `n = (P)/(E) = (P)/(H UPSILON)` `= (19.86)/(6.6 xx 10^(-34) xx 10^(14)) = 3.009 xx 10^(20)` `n = 3 xx 10^(20)` `n_(p) = 3 xx 10^(20)` |
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