Videos:
Lecture series from the Agnes Scott Physics and Astronomy Channel on Optics using Physics For Scientists and Engineers 5e by Randall D. Knight:
https://youtube.com/playlist?list=PLS-Za3CHQ4xQqVx8M3SVE_waem-16gx4U&si=3TMoUts-4J0MgrOG
Additional videos that go into more detail regarding Diffraction and Young’s Double Slit experiment:
https://youtube.com/playlist?list=PLS-Za3CHQ4xSLJRqQANhk9bQtFZlVoa70&si=-rGcnHXVviNCzx2O
Problems:
Problems come from Physics For Scientists and Engineers 5e by Randall D. Knight
After watching these videos you should be able to answer the following questions. If you’re having trouble I recommend rewatching the videos linked above or reviewing the topic in your physics textbook!
- What is diffraction? What is interference? How do the two phenomena relate to one another?
- What is constructive interference? What is destructive interference?
- Light of wavelength 625 nm passes through a single slit of width 0.320 mm and forms a diffraction pattern on a flat screen located 8.00 m away. Determine the distance between the middle of the central bright fringe and the first dark fringe.
- Light is incident on two slits that are separated by 0.2 mm. The figure shows the resulting interference pattern observed on a screen 1.0 m from the slits. Determine the wavelength of light used in this experiment.
- Light of wavelength 530 nm is incident on two slits that are spaced 1.0 mm apart. How far from the slits should the screen be placed so that the distance between the m = 0 and m = 1 bright fringes is 1.0 cm?
- Light with a wavelength of 600.0 nm is incident on a single slit of width 6.5 μm. The resulting diffraction pattern is observed on a nearby screen and has a central maximum of width 3.5 m. What is the distance between the screen and the slit?