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Author Question: A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon of ... (Read 100 times)

lak

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Question 1

A laser used in some laser pointers has a wavelength of 405 nm. What is the frequency of this light in hertz (s-1)?

7.41 × 105 s-1
1.35 × 10-13 s-1
1.35 × 10-6 s-1
7.41 × 1014 s-1
1.22 × 102 s-1

Question 2

A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon of light at this wavelength, the frequency of this light is:

8.61 × 10–16 s–1


7.70 × 10–19 s–1


1.16 × 1015 s–1


77.3 s–1


none of these are correct


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Marked as best answer by lak on Mar 21, 2021

Christopher

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lak

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Reply 2 on: Mar 21, 2021
Gracias!


jackie

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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