Assignment Details

4 - TIR or Refraction

Year 2024-25

11H-Physics - (tu5/6 +f5/6)

Date Due

Sept. 20, 2024, 4 p.m.

Additional Info
Evening all,

So, if you have a look in OneNote Unit 03 > Lesson 10 you will see I have completely remade the questions I showed you in class and put them into one OneNote page that is more easy to navigate and I have reworded the questions for each one, so it is more obvious what to do.

  • THERE ARE HINTS FOR EACH QUESTION AT THE BOTTOM OF THE PAGE - USE THEM - they will help you with the order to tackle the problems to eventually decide if it is a TIR problem, or a Refraction problem.
  • Remember;
    • You can use  n = 1 / Sin c   to find n if you know c (or vice versa)
    • and  n = Sin i / Sin r  links n, i, and r, so if you know two of those values, you can always work out the third.
    • MAKE SURE you have correctly identified the angle of incidence - SOME diagrams identify OTHER angles that will allow you to work out i!  Don't fall for a RED HERRING!!
Page is called 
"4 - TIR or Refraction - identification HANDOUTS"

Do what you can in 40mins, The questions range in difficulty, if you can't do a question, read the hints, and do what you can, then move on to another question.

  • I have deleted your old one, just FYI, so you don't look for it.
  • I have transcribed the answers to the starter questions and the examples so you don't have to.
  • IF YOU MADE A START, I went in to each of your old ones and copied across all your work you had done so far, and put the off comment if it looked like you weren't showing enough working out on the first few you have done.
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