Consider two diffraction gratings with the same slit separation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratings are illuminated with a beam of the same monochromatic light, make a statement concerning the separation between the orders.
A)The grating with 3 slits produces the greater separation between orders.
B)The grating with 4 slits produces the greater separation between orders.
C)Both gratings produce the same separation between orders, but the orders are better defined with the 3-slit grating..
D)Both gratings produce the same separation between orders, but the orders are better defined with the 4-slit grating.

Question

Quizplus · Accepted Answer

The separation between orders depends on the slit separation, not the number of slits. However, more slits result in sharper and better-defined orders.

Consider Two Diffraction Gratings with the Same Slit Separation, the Only