Chapter 24, Problem 6MCQ

Multiple Choice Questions

You shine a laser beam through a grating with a known number of slits per millimeter and observe a pattern on a screen. Then you cover half of the grating with nontransparent material What will you see?

a. There will be half as many bright fringes on the screen.

b. The bright fringes will be twice as close.

c. The bright fringes will be two times farther apart

d. The location of the fringes will not change, but they will be a little bit wider and less bright.