Estimating the wavelength of light using a plane diffraction
In this experiment, the first order spectrum is used for measuring the wavelengths of different colors. Give one advantage and one disadvantage of using the second order spectrum instead.
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2008-01-14 2:19 am
回答 (1)
2008-01-14 8:04 am
✔ 最佳答案
Advantage: Since the angle measured is larger (nearly double) than that of the first order, the % of reading error is smaller.Disadvantage: Each color observed becomes blur (wider) OR The light intensity of second order is weaker, it is more difficult to measure the accurate angle.
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