Practice Problems
Single Slit Diffraction
Topics:
On this worksheet you will investigate the properties of
single slit diffraction
along with any similarities and differences that it has with double slit interference patterns.
Page Directions
The numerical values in this worksheet are randomly generated allowing students the opportunity to conveniently practice, and drill, common situations.
Before beginning any given worksheet, please look over all of the questions and make sure that there are
no duplicate
answers shown for the same question. If duplicates are present simply refresh the page until every answer is unique.
In order to check an answer
(even when you are just starting the worksheet on Question 1)
it is necessary to
any questions that you have not answered. Once you start submitting answers, the page may be checked as many times as necesasary without changing the randomized answers. Relevant scoring will be provided at the top of the page only when you answer all of the questions on your original submission.
Directions:
Directions:
On this worksheet you
omit
Question 1
Which of the following two intensity diagrams best represents the passage of waves through a single slit?
omit
Question 2
In single slit diffraction patterns, the bright fringes
stay the same width and brightness as you move away from the central maximum
get narrower and dimmer as you move away from the central maximum
omit
Question 3
When working single slit diffraction problems, if Point P is located in a minimum, or dark fringe, the extra distance a ray from the bottom of the slit travels compared to the distance a ray from the top of the slip travels is
a whole number of wavelengths: 1λ, 2λ, 3λ
an odd number of half-wavelengths: ½λ, 3(½λ), 5(½λ)
omit
Question 4
Light of wavelength 540 nm passes through a single slit of width 5.4 µm. At what angular deviation, as measured from the middle of the central maximum, would the 1st order dark fringes appear on a screen that is 2.8 meters away?
2.87 degrees
1.43 degrees
8.63 degrees
5.74 degrees
omit
Question 5
What is the width of the central maximum on the screen?
0.14 meters
0.56 meters
0.84 meters
0.28 meters
omit
Question 6
If the wavelength of light passing through the slit were to be decreased, what changes would be noticed in the width of the central maximum?
it would remain unchanged
it would get narrower
it would get wider
omit
Question 7
If the wavelength of light passing through the slit remained the same, but the width of the slit was decreased, what changes would be noticed in the width of the central maximum?
it would remain unchanged
it would get narrower
it would get wider
PhysicsLAB
Copyright © 1997-2024
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton