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[" 44.Energy of a quanta of frequency "10^(15)Hz" and "h=6.6times],[10^(-34)J" -sec will be "],[[" (a) "6.6times10^(-19)J," (b) "6.6times10^(-12)J],[" (c) "6.6times10^(-49)J," (d) "6.6times10^(-41)J]]

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