Quantum Theory 1.25

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Semi Yoon
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Quantum Theory 1.25

Postby Semi Yoon » Fri Oct 12, 2018 3:03 pm

Sodium vapor lamps, used for public lighting, emit yellow light of wavelength 589 nm. How much energy is emitted by an excited sodium atom when it generates a photon?

Matthew D 3F
Posts: 14
Joined: Fri Apr 06, 2018 11:02 am

Re: Quantum Theory 1.25

Postby Matthew D 3F » Sat Oct 13, 2018 11:16 am

To solve this problem, you get the equation E = hc/ λ. This comes from both E = hv and c = vλ. For part a, you just plug in the values, with λ being 589*10^9m

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