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Chapter 7, Problem 33P

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QUESTION:

Careful spectral analysis shows that the familiar yellow light of sodium lamps (such as street lamps) is made up of photons of two wavelengths, 589.0 nm and 589.6 nm. What is the difference in energy (in joules) between photons with these wavelengths?

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QUESTION:

Careful spectral analysis shows that the familiar yellow light of sodium lamps (such as street lamps) is made up of photons of two wavelengths, 589.0 nm and 589.6 nm. What is the difference in energy (in joules) between photons with these wavelengths?

ANSWER:

Step 1 of 2

Here, we are going to calculate the difference in energy (in joules) between photons with these wavelengths.

The emission of a photon from the transition of energy level is given by the equation.

 ---(1)

Where

 , the Rydberg constant for the hydrogen atom,

 =   .

 

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