The Wavelength of the Yellow Light Given Off by a Sodium

question 71

Multiple Choice

The wavelength of the yellow light given off by a sodium vapor street lamp is 589 nm. What is the frequency of this light in hertz (s^-1) ?

• A)5.09 × 10⁵ s^-1
• B)5.09 × 10¹⁴ s^-1
• C)1.96 × 10^-6 s^-1
• D)1.96 × 10^-13 s^-1
• E)1.77 × 10² s^-1

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