OCR A A-level Physics Paper 1 Modelling Physics (H556/01) - 24th May 2023 [Exam Chat]

Do we need to know about Obler's Paradox, Critical Density of the Universe and the fate of the universe (one, closed and flat)?

yes

No, ignore the other reply. That's all old spec

No, ignore the other reply. That's all old spec

No, ignore the other reply. That's all old spec

wtf is that?

Isnt it in the new spec too?
It is in my new spec OCR txtbook given by my school.

I did think they are old spec.
But when I was doing exam questions (new spec) on PMT, I found a question asking about Obler's paradox and critical density.
it's the first question on Astrophysics & Cosmology 3 QP for OCR A Physics A-Level on PMT.
So that's why Im unsure.

Yes thats why i think it might be too
i asked my physics teachers and they said to revise it so... idk anymore

Yes thats why i think it might be too
i asked my physics teachers and they said to revise it so... idk anymore

All the physics and maths tutors papers use old spec questions too, if you look on the OCR website under 'withdrawn qualifications material' you will see all the old papers and they are the same questions PMT use in their booklets

100% not on spec. Your teacher is a noob. I bet they taught you MRI and Malus' law too

100% not on spec. Your teacher is a noob. I bet they taught you MRI and Malus' law too

Malus' law yes MRI no

is MRI in the new spec?

is MRI in the new spec?

Nope