Edexcel Physics A Level Paper 2 8th June 2018

Also , to measure distance you could use trigonometrical parallax right ?

I could have done well if I actually revised because that paper was alright... ugh

Angle of refraction?

Angle of refraction?

plz say i wasnt the only one that found that quite hard

plz say i wasnt the only one that found that quite hard

Definitely not the only one

plz say i wasnt the only one that found that quite hard

Definitely not the only one

Got 42-45 degrees for the angle of refraction

I also got 44 degrees but they asked for the angle from the deviated line, not the normal, so I think you have to minus 28 to get 16 degrees

Not too sure, but I put in the wavelength into Wien's Law to get a temperature which is 4000K and said that's way higher than room temperature. Alternatively, some classmates put in Temperature as 298 (273+25) to find a wavelength which is a lot longer than red light.

I did 1.47 sin (28) = sin (theta)
theta was 44 degrees, but from the undeviated line it would be 44-28=16 degrees

What did everyone get for that 12 hour elliptical orbit question? I think I got 4.1 hours for the circular period so the statement is inaccurate

I think i got like 11.9 hours? could be wrong though i didn't check

What did everyone get for that 12 hour elliptical orbit question? I think I got 4.1 hours for the circular period so the statement is inaccurate

I think i got like 11.9 hours? could be wrong though i didn't check