The Hydrogen Spectrum Has a Red Line at 656 Nm,and $\degree$

question 38

Multiple Choice

The hydrogen spectrum has a red line at 656 nm,and a blue line at 434 nm.What is the first order angular separation between the two spectral lines obtained with a diffraction grating with 5000 rulings/cm?

• A)7.7\(\degree\)
• B)16.6\(\degree\)
• C)6.6\(\degree\)
• D)3.2\(\degree\)
• E)19.2\(\degree\)

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