In my school on the astro ray diagram question, a lot of people did the ray diagram for a refracting telescope in normal adjustment.
Im pretty sure the question told you to draw the diagram for a magnified real image.

Oh yeah, and a lot of people wrote virtual in the question before that asking about another feature of the image. i thought it was real

Reply 885

username1884583

6

No-one has a pictures of the paper?

Reply 886

Manam786

Original post by Theaveragejoe

Thts what i got

Yeah i got that as well. 4.39 x 10^4 for the gas volume

Reply 887

Vikingninja

21

Holy **** that exam was glorious, my section B was astro.

Reply 888

philo-jitsu

2

Paper was decent except i stuggled with the photocell 6 marker for turning points

Also sat down in exam and opened up to find astrophysics paper lol...had to be sent out for 30 minutes until they printed of the correct paper!

Reply 889

hamz10

1

Original post by Manam786

In my school on the astro ray diagram question, a lot of people did the ray diagram for a refracting telescope in normal adjustment.
Im pretty sure the question told you to draw the diagram for a magnified real image.

Oh yeah, and a lot of people wrote virtual in the question before that asking about another feature of the image. i thought it was real

It was a real image people don't realise the question was talking about just the eyepiece lens not the whole telescope. You was not meant to draw normal adjustment.

Reply 890

twallien

2

Original post by Mango Milkshake

anyone who did applied?

yeah, i did. How did you find it?

Reply 891

Manam786

Original post by hamz10

It was a real image people don't realise the question was talking about just the eyepiece lens not the whole telescope. You was not meant to draw normal adjustment.

it also said "real object"
seemed to confuse a lot of people

Reply 892

tanyapotter

20

unofficial mark scheme for nuclear and astro?

Reply 893

Mango Milkshake

2

Original post by twallien

yeah, i did. How did you find it?

found it ok

for the first one, did you use sin45*11*3 i think?

Reply 894

Matthew_123

1

Original post by Sid1234

127.24 i got o.O

Same, it was 128MeV from the graph

Reply 895

twallien

2

Original post by Mango Milkshake

found it ok

for the first one, did you use sin45*11*3 i think?

Well multiplied by the radius in order to get the torque so 3*11*cos(45)*0.125

Reply 896

GeorgiaAnne

Original post by boyyo

And did anyone get c of ice cube to be about 2100 for the last part of that thermal question?

I did! Thought it was v low considering water is about 4900

Reply 897

McDerdactyl

9

Original post by Manam786

In my school on the astro ray diagram question, a lot of people did the ray diagram for a refracting telescope in normal adjustment.
Im pretty sure the question told you to draw the diagram for a magnified real image.

Oh yeah, and a lot of people wrote virtual in the question before that asking about another feature of the image. i thought it was real

I did a normal ray diagram with the converging lens being the eyepiece lens, the object between f and 2f and showed that the image formed was inverted, magnified and real. I also showed that the image was past 2f which would work with the values calculated.

And I wrote that it was real, some people said it said that in the question but it said the OBJECT was real. :smile: