Physics AS Paper 12 Discussion and Expected Grade Boundries.

[AhmedHesham]

How was the exam ?
What did you choose in the question of the forces on the plane ?
I got it D

 

[Ahmed Khattab]

Yea i got D what did u get for q 39 on the uranium thing i got A

 

[Bba321]

I got D too
What about the time one? The one with 50% effeciency

 

[Ahmedlool]

i got t divided by the square root of 6
wbu?

 

[Ahmedlool]

oh and for the one which said which isnt correct i said scattered light B
is that right

 

[Ahmedlool]

what did u get for the circuit i said increase the voltage supply

 

[Ahmedlool]

and for the atom cuboid thing i got 0.69 B i think

 

[Ahmedlool]

and the conservation of momentum i got c

 

[Ahmedlool]

and for the speed on a wave i said the distance between two adjacent anti nodes

 

[Ahmedlool]

anybody?

 

[abdulkhan]

i got the same ans for the circuit 1 but for waves it is speed of 1 of the progressive waves

 

[abdulkhan]

oh and for the one which said which isnt correct i said scattered light B
is that right

btw which question is this and what was the thickness of the line

 

[Ahmedlool]

i think i got B

 

[abdulkhan]

I guess I got c and what about the intensity graph

 

[Ahmedlool]

what was the intensity graoh i think i forgot it

 

[Ahmedlool]

i thnk it was c aswell

 

[abdulkhan]

The intensity changes during the formation of interference fringes

 

[Bba321]

What was R and the other time question in which we were given the effeciency?

 

[AhmedHesham]

and for the atom cuboid thing i got 0.69 B i think

yeah i got it 0.69 also

 

[AhmedHesham]

what about Q38 which is the correct statement of Alpha Particle ? I made it C .. which is the charge is +1.6x10^19