Unfortunately, there aren't any Youtube videos on the set 2 specimen paper that I know of, but there's a channel called ' LAE Physics ' which I find quite helpful and he goes through some of the practical skills that used to be tested in coursework but are now tested in this evil exam.
Hi I don't know weather it is too late for you or not. Maybe we can all revise tomorrow morning as it is in the afternoon. There is this video, I don't know weather it is this paper you are talking about, but this is the Paper 2 specimen paper.
Unfortunately, there aren't any Youtube videos on the set 2 specimen paper that I know of, but there's a channel called ' LAE Physics ' which I find quite helpful and he goes through some of the practical skills that used to be tested in coursework but are now tested in this evil exam.
This link was so useful!! learnt so much from it. I just have 1 question, when would you us the actual uncertainty and when would you half it like on a ruler the uncertainty is 1mm but on some questions they use 0.05mm? Thankyouuuu
How do you measure fringe spacing!!? Can someone please explain how you can calculate fringe spacing by measuring a large number of fringes.
To minimise errors, measure the distance from the first bright fringe to the last bright fringe (this is a larger distance so reduces uncertainty) and then divide that by the number of spaces to get the distance between consecutive bright fringes.
To minimise errors, measure the distance from the first bright fringe to the last bright fringe (this is a larger distance so reduces uncertainty) and then divide that by the number of spaces to get the distance between consecutive bright fringes.
Got it thanks! Also can w=lambda * d / s be applied to Diffraction gratings ?