The Red Line Observed in the Line Spectrum for Hydrogen

question 49

Multiple Choice

The red line observed in the line spectrum for hydrogen has a wavelength of 656 nm.What is the frequency of this light in hertz (s^-1) ?

• A)4.57 x 10⁵ s^-1
• B)4.57 x 10¹⁴ s^-1
• C)2.18 x 10^-6 s^-1
• D)2.18 x 10^-13 s^-1
• E)1.97 x 10² s^-1

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