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Home Q & A Board Science-Related Homework Help Physics
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mikael mikael
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9 years ago
The spacing of ruled lines on a diffraction grating is  1630 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band. The angular width of the gap between the first order spectrum and the second order spectrum is closest to: 
A) 4.0° 
B) 5.0° 
C) 6.0° 
D) 7.0° 
E) 3.0° 
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padrepadre
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