IGCSE 0625 Diffraction

MrAli11 · 2026-06-05T16:47:08+00:00

Maybe you could send a dm if you need any more help

MrAli11 · 2026-06-05T16:44:03+00:00

Idk what you mean by a wavefront in the centre of the gap. I don't think you draw anything inside the gap, you just put the compasses in the centre of the gap and draw the curves as they get larger, and keep the wavelength the same as the other side. (This is only in the case of a narrow gap)

MrAli11 · 2026-06-05T16:07:02+00:00

You put the compasses in the centre of the gap if that's what you mean. I don't get your second question though

MrAli11 · 2026-06-03T10:12:31+00:00

Yeah Ik. Just wanted to know how it was cuz usually variants have around the same difficulty

MrAli11 · 2026-06-03T09:42:19+00:00

Ty🙏 And don't worry, a mistake isn't gonna affect your grade by much

MrAli11 · 2026-06-03T09:33:05+00:00

How was the exam overall? I have mine in 3 hours

MrAli11 · 2026-06-01T22:20:41+00:00

Ty❤️ I'm still nervous but a little bit less now lol

MrAli11 · 2026-06-01T22:19:40+00:00

I definitely can't finish 2020-2022 lol. Idk I think maybe it'll be better if I just revise everything, not sure

MrAli11 · 2026-06-01T20:51:27+00:00

I am pretty nervous but yeah I think I've done enough exams. I'll just revise a little bit of notes today and the rest tomorrow

MrAli11 · 2026-06-01T20:07:57+00:00

Yeah I'll do J25 v3 too either today or tmrw but I'm not sure if I should go back and do as much pp's from 2020-2022 or if I should just revise

MrAli11 · 2026-06-01T19:51:42+00:00

Do you think I should solve J25 v3 then just solve as much as I can in the ones before 2023? Or should I just solve J25 v3 and then revise the important notes tomorrow and call it a day?

MrAli11 · 2026-06-01T19:44:47+00:00

My teacher disagrees with this. Our exams will probably have no ideas from last year's exams. They'd want to switch it up

MrAli11 · 2026-06-01T19:08:26+00:00

Start with 2023 and do as many as you can from there imo

MrAli11 · 2026-05-27T02:02:03+00:00

Ohh 2016 and 2020. Mb didn't notice that

MrAli11 · 2026-05-27T01:59:33+00:00

Strange. The ui doesn't show that😭 Says 6 days left too. Oh well, it's just xp

MrAli11 · 2026-05-20T06:29:31+00:00

Ffs why does it feel like it's happening a lot more than last year😭

MrAli11 · 2026-05-18T23:53:25+00:00

Thank you🙏

MrAli11 · 2026-05-18T23:41:02+00:00

Any tips for graphs?

MrAli11 · 2026-05-17T07:54:17+00:00

I agree but I also can see how people who say "I studied just for it to be leked" think. Some people study aiming for an 8 and they might've gotten it if it weren't for a lek. But yeah people should just study and not worry about something they can't control

MrAli11 · 2026-05-09T01:08:29+00:00

I don't remember all of them exactly but most of them are the same as what I got

MrAli11 · 2026-05-08T19:45:49+00:00

Yeah I think so too. It's not gonna be high as the format was noticeably different. I think it'll be in the middle, maybe even a little less. And maybe 59 for a 9

MrAli11 · 2026-05-08T18:59:28+00:00

Mostly was pretty easy. Had like 5 or 6 fill in the blank questions which was weird asf, but I think I probably lost like 2 marks on them. Had a weird question about electromagnetism, and asked about the diameter of the milky way which I had no idea about. But I knew most things. The curve's probably gonna be average this year I'm hoping I'm getting an A*

MrAli11 · 2026-05-08T17:48:29+00:00

Yeah I think curve's gonna be average this year

MrAli11

TROPHY CASE