Physics question 6 hw 12 (if you answer please include work!)

Physics
Tutor: None Selected Time limit: 1 Day

Determine the wavelength of incident electromagnetic radiation required to cause an electron transition from the n = 5 to the n = 7 level in a hydrogen atom.
Question 6 options:
Jul 24th, 2015

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Energy of emitted photon

E= 13.6 x ( 1/5^2- 1/7^2)=0.266eV

We know that E= hc/u

E= {6.63 x 10 ^-34 x 3 x 10^8}/{0.266 x 1.6 x 10 ^ 19}

= 4.6 x 10^3 nm


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Jul 24th, 2015

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