useful tips for exam 2 - ch 4 electromagnetic radiation

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12 Terms

1
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frequency

ν

2
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wavelength

λ

3
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if you are given c and frequency, what are you solving for?

→ ? =(c/ν)

λ; wavelength

4
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if you are given c and wavelength, what are you solving for?

→ ? =(c/λ)

v; frequency

5
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what is the conversion factor for cm → m?

1 cm = 1×10-2 m

6
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what is the conversion for nm → m?

1 nm = 1×10-9 m

7
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what is the conversion for m → nm?

1m = 1×109 nm

8
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what do these units mean?

Å, cm, nm, m,

they are all wavelengths λ

9
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what do these units mean?

s-1, hz

they are both frequencies ν

10
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what is the conversion factor for m → Å

1×10-10m = 1Å

11
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what is (E/h)=v used for?

to get from a photon of energy → a frequency

12
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what is λ=(hc/E) used for?

to get from a photon of energy → frequency → wavelength