To obtain greater dispersion by a diffraction grating:
A)the slit width should be increased
B)the slit width should be decreased
C)the slit separation should be increased
D)the slit separation should be decreased
E)more slits with the same width and separation should be added to the system

Question

Quizplus · Accepted Answer

According to the grating equation, the dispersion depends on the slit separation (d). Therefore, to obtain greater dispersion, the slit separation should be decreased.

To Obtain Greater Dispersion by a Diffraction Grating