MLA Citation: Bloomfield, Louis A. "Question 411"
How Everything Works 16 Jul 2018. 16 Jul 2018 <>.
411. Diffraction: I would have thought that the waves wouldn't go through the screen because the wave was too long to recognize the holes in it. How did the light go through the screen?
When I sent laser light through a fine screen, it formed an interesting diffraction pattern on a distant wall. The holes in the screen were small, but not nearly as small as a wavelength of light. The light had no trouble going through these holes, but it did suffer diffraction effects. Because the wave passed through many separate holes, these waves interfered with one another and created the complicated pattern on the wall.

Return to
Generated for printing on Monday, July 16, 2018 at 8:51:13 EDT
Copyright 1997-2018 © Louis A. Bloomfield, All Rights Reserved
Privacy Policy