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 E_n = -2.18 × 10 ^-18 J(1/n²)

• A)1.35 × 10^-51 /s
• B)1.03 × 10⁸ /s
• C)2.06 × 10¹⁴ /s
• D)8.22 × 10¹⁴ /s
• E)3.08 × 10¹⁵ /s

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