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A sodium vapor lamp emits light waves with a frequency of 5.26 x 1014 Hz. What is the wavelength of the light?

User Dan Jurgen
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1 Answer

5 votes

Answer:

570 nm

Step-by-step explanation:

The wavelength of an electromagnetic wave is given by:


\lambda=(c)/(f)

where


c=3.0\cdot 10^8 m/s is the speed of light (the speed of the electromagnetic waves in a vacuum)


f=5.26\cdot 10^(14) Hz is the frequency of the emitted light

Substituting the numbers into the equation, we can find
\lambda, the wavelength of the emitted light:


\lambda=(3\cdot 10^8 m/s)/(5.26\cdot 10^(14) Hz)=5.70\cdot 10^(-7) m = 570 nm

User Tarsis
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