Diffraction Gratings: What is the angular separation of two spectral lines of wavelengths 497 nm and 251 nm formed in the third order with a diffracting grating having 587 lines per millimeter?
A. 34.8°
B. 24.8°
C. 41.3°
D. 29.4°
E. 4.21°
Answer: A
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A. +x direction
B. -x direction
C. +y direction
D. -y direction
E. +z direction
F. -z direction
T. The field is zero.
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