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For problem 1.23 I calculated the wavelength in nm, but when I went to check my answer with the solutions manual it had the answer in pm. How do I know which units to use for the final answer when calculating wavelength?
In this problem it makes sense to convert the wavelength to picometers because one picometer is equal to 1x10^-12 meters. Since the wavelength was calculated as 8.8237x10^-12 m, 8.8237 pm expresses this wavelength in the simplest form.
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