Calculate the Frequency of the Light Emitted by a Hydrogen

question 73

Multiple Choice

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level.Recall that for hydrogen En = -2.18 × 10^-18 J(1/n² ) .(h = 6.63 × 10^-34 J • s)

• A)3.08 × 10¹⁵ s^-1
• B)1.03 × 10⁸ s^-1
• C)2.06 × 10^{14 s-1}
• D)1.35 × 10^{-51 s-1}
• E)8.22 × 10^{14 s-1}

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