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27 votes
A diffraction grating is 1.50 cm wide and contains 2000 lines. When used with light of a certain wavelength, a third-order maximum is formed at an angle of 20.0°. What is the wavelength (in nm)?

User Ashok Kumar
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1 Answer

8 votes
8 votes

Answer:

because of the gravity of the earth

User Lbrahim
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