What Is the Wavelength of the Line in the Paschen

question 72

Multiple Choice

What is the wavelength of the line in the Paschen series of hydrogen that is comprised of transitions from the n = 5 to the n = 3 levels? (R = 1.097 × 10⁷ m−¹ and 1 nm = 10−⁹ m)

• A)1406 nm
• B)1282 nm
• C)684 nm
• D)750 nm
• E)​365 nm

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