Given: In Atomic Spectra lab, a student obtained his best-fit line equation to be y = 0.29 x + 46.8 when he plotted his Vernier reading on the y-axis and wavelength in nm on the x-axis.
Question: If the Vernier reading for a line is 198.9, what is the predicted wavelength of this line in nm? (Keep 4 sig figs with one decimal place.)
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2016-11-01 2:56 pm
回答 (1)
2016-11-01 3:43 pm
y = 0.29 x + 46.8
When y = 198.9 :
198.9 = 0.29 x + 46.8
x = (198.9 - 46.8) / 0.29
x = 524.5
Hence, predicted wavelength of this line = 524.5 nm
When y = 198.9 :
198.9 = 0.29 x + 46.8
x = (198.9 - 46.8) / 0.29
x = 524.5
Hence, predicted wavelength of this line = 524.5 nm
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