Phys 4C Solutions to Homework and Exam Problems - 2025 Spring


All these notes and solutions are pdf files, which you can read with Adobe Acrobat Reader, a free program available here.


If you have trouble loading any of these pdf files, please select "Next Page" and "Reload" (Ctrl+R) or "Reload current page."




  • Chapter 33 homework solutions (E/M waves): click here.

  • Chapter 34 homework solutions (Geometrical optics: reflection and refraction): click here.

  • Chapter 35 homework solutions (Image formation: mirrors and lenses): click here.

  • SOLUTIONS to Mid-Term Exam 1, covering Chapters 33, 34, and 35: click here.



  • Chapter 36 homework solutions (Interference of waves: wave optics): click here.

  • Chapter 37 homework solutions (Diffraction and polarization): click here.

  • Chapter 38 homework solutions (Special relativity): click here.

  • Chapter 39 homework solutions (Quantum physics): To be posted here on 4/24.


    Above this and including and after the Chapter 36 homework solutions are what students will need to prepare for Mid-Term Exam 2, which will cover Chapters 36, 37, 38, 39, and 40, and be given in class on Wednesday, April 30.





  • Four handouts will be handed out on the first day of class:

  • Review Maxwell's equations from Phys 4B in the Phys 4C textbook by Serway & Jewett:


  • Chapter 33 (E/M waves):

    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:
  • Handouts for Monday (1/27) and Wednesday (1/29) include:

  • Chapter 34 (Geometrical optics: reflection and refraction):

    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:

  • Chapter 35 (Image formation: mirrors and lenses):


    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:

  • Practice Mid-Term Exam 1, on Chapters 33, 34, and 35: click here.

  • Practice Mid-Term Exam 1 SOLUTIONS, on Chapters 33, 34, and 35: click here.

  • Second practice Mid-Term Exam 1, on Chapters 33, 34, and 35: click here.

  • Second practice Mid-Term Exam 1 SOLUTIONS, on Chapters 33, 34, and 35: click here.



  • SOLUTIONS to Mid-Term Exam 1, covering Chapters 33, 34, and 35: click here.



  • Chapter 36 (Interference of waves: wave optics):

    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:

  • Chapter 37 (Diffraction and polarization):

    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:


  • Chapter 38 (Einstein's Special Theory of Relativity)


    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:

  • Chapter 39 (Quantum physics)

    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:


  • Chapter 40 (Quantum mechanics):


    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:

    Above is what students will need to prepare for Mid-Term Exam 2, which will cover Chapters 36, 37, 38, 39, and 40, and be given in class on Wednesday, April 30.



  • Chapter 43 (Nuclear physics):


    • If you have difficulty reading the notes on the whiteboard or the PowerPoints shown in these videos, you may view them here or even download them:
    All these notes and solutions are pdf files, which you can read with Adobe Acrobat Reader, a free program available here.


    Go to the Phys 4C page

    Go to Professor Ringwald's home page

    Last updated 2025 April 10. Webpage by Professor Ringwald, Department of Physics, California State University, Fresno. Please read this disclaimer.