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Chemistry, 06.07.2019 05:20 baeethtsadia
The wavelength of the red-pink line emitted by a laboratory sample of excited hydrogen is 656 nm. taking a spectrum of a glowing nebula, you find that the same red-pink line of hydrogen appears at 662 nm. you conclude that the nebula
a. is 1% hotter than hydrogen in the laboratory sample.
b. is moving towards us at about 1% the speed of light.
c. is 1% cooler than hydrogen in the laboratory sample.
d. is moving away from us at about 1% the speed of light
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The wavelength of the red-pink line emitted by a laboratory sample of excited hydrogen is 656 nm. ta...
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