Atomic lithium of concentration n 3 6 1016 cm 3 is at a temperature T 1500 K In this case the power emitted at the resonant line 's wavelength 671 nm (2P 2S) per unit volume of gas is equal to P 0 30 W cm a Find the mean lifetime of Li atoms in the resonance excitation state

Question: Atomic lithium of concentration n = 3.6.1016 cm 3 is at a temperature T = 1500 K. In this case the power emitted at the

Atomic lithium of concentration n = 3.6.1016 cm –3 is at a temperature T = 1500 K. In this case the power emitted at the resonant line's wavelength λ = 671 nm (2P → 2S) per unit volume of gas is equal to P = 0.30 W/cm a. Find the mean lifetime of Li atoms in the resonance excitation state.

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The number of excited atoms per unit volume of the gas in 2P state is 8p2xhcAkT ... View full answer

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