## Sampling week 2,3,4, Q8

Xinying Wang_3C
Posts: 67
Joined: Wed Sep 30, 2020 9:39 pm

### Sampling week 2,3,4, Q8

Given the wavelength and ask to find the initial energy level and ending energy level, after using v=R(1/(n2)^2-1/(n1)^2), then I have (1/(n2)^2-1/(n1)^2)=some number, how do you find n1 and n2 from fractions or decimals?

Isaias Gomez D3A
Posts: 62
Joined: Wed Sep 30, 2020 9:37 pm
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### Re: Sampling week 2,3,4, Q8

Once given the wavelength, you should be able to figure out whether it belongs to the Lyman or Balmer series. For example, if the wavelength belongs to one from the visible light spectrum, then it is the Balmer series, meaning n2 should be 2. If in Lyman's series, n2 is 1

Aaina 2D
Posts: 108
Joined: Wed Sep 30, 2020 9:41 pm

### Re: Sampling week 2,3,4, Q8

Isaias Gomez D3A wrote:Once given the wavelength, you should be able to figure out whether it belongs to the Lyman or Balmer series. For example, if the wavelength belongs to one from the visible light spectrum, then it is the Balmer series, meaning n2 should be 2. If in Lyman's series, n2 is 1

After doing what was mentioned above, you can solve for the frequency as you're given the wavelength. Then, you can plug all these values into Rydberg's equation and solve for n1.

Kelly Tran 1J
Posts: 109
Joined: Wed Sep 30, 2020 9:50 pm
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### Re: Sampling week 2,3,4, Q8

Aaina 1D wrote:
Isaias Gomez D3A wrote:Once given the wavelength, you should be able to figure out whether it belongs to the Lyman or Balmer series. For example, if the wavelength belongs to one from the visible light spectrum, then it is the Balmer series, meaning n2 should be 2. If in Lyman's series, n2 is 1

After doing what was mentioned above, you can solve for the frequency as you're given the wavelength. Then, you can plug all these values into Rydberg's equation and solve for n1.

When plugging in those values into the Rydberg equation, it would be best if you kept the exact values in the calculator and do not round until the very last step. This will allow the final value of n1 to be as accurate as possible.