| Homework solutions |
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| • | Question
10: The thickness of a plastic freezer |
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| storage
bag is roughly 0.1 mm. How many |
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| wavelengths
of red light is this? |
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| • | Simple
math and conversion. mm is 1/1000 m, |
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| nm
is 10-9 meter. |
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| • | 0.1mm/700 nm = 140. |
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