Question

1) In a single slit experiment, both the slit width and the wavelength of light used are reduced by a factor of 1.5. What happens to the distance on the screen between adjacent locations of destructive interference on a faraway viewing screen?

a. Their locations do not change

b. They move farther apart

c. They move closer together

2) Which of the following is true when waves have constructive interference at a point in space?

a. The waves are always at their peaks, but they are not always in phase

b. The waves are always at their peaks and they are are always in phase

c. The waves are always in phase, but are not always at their peaks

Answer 1