Hey there! Sign in to join this conversationNew here? Join for free

2016 Official AQA New Spec AS Level Physics Paper 2 - 9th June 2016 Watch

    Offline

    4
    ReputationRep:
    (Original post by money-for-all)
    0.62
    For the moment question 0.62 is the wrong answer. If the sphere is uniform then the force acts halfway through it, so 12 + radius =14.5cm. Then it is 0.145×5=0.725Nm, youll probably get 1 mark though
    Offline

    1
    ReputationRep:
    (Original post by 456CJ)
    Did anyone get alpha as 10
    yeah i did that was a trippy one
    Offline

    1
    ReputationRep:
    (Original post by champ_mc99)
    What was the phase difference pi/8?
    Put pi/4 coat it was 1/8th of a wavelength path difference. thus phase difference was 2pi/8 so that simplifies to pi/4
    Offline

    4
    ReputationRep:
    (Original post by champ_mc99)
    What was the phase difference pi/8?
    Yeah thats what I got
    Offline

    0
    ReputationRep:
    (Original post by 456CJ)
    Did anyone get alpha as 10
    10.1? I did.
    Offline

    1
    ReputationRep:
    (Original post by champ_mc99)
    What was the phase difference pi/8?
    i got pi/4
    Offline

    1
    ReputationRep:
    anyone ran out of time? was a hard paper tho
    Offline

    14
    ReputationRep:
    I bet i can predict the future,
    this is where your going to be next year

    http://www.thestudentroom.co.uk/show....php?t=4055791
    Offline

    2
    ReputationRep:
    And the maximum emf I got 1462.5
    Offline

    1
    ReputationRep:
    (Original post by mstrcvk)
    For the moment question 0.62 is the wrong answer. If the sphere is uniform then the force acts halfway through it, so 12 + radius =14.5cm. Then it is 0.145×5=0.725Nm, youll probably get 1 mark though
    i got .725 but i gave it as .7 as the 5N was 1 sigfig do you recon thats acceptable?
    Offline

    15
    ReputationRep:
    35 for an A
    Offline

    1
    ReputationRep:
    (Original post by 456CJ)
    And the maximum emf I got 1462.5
    yeah i got around that but i think it depends on your graph
    Offline

    1
    ReputationRep:
    guys why did we choose physics
    Offline

    1
    ReputationRep:
    (Original post by mstrcvk)
    Yeah thats what I got
    It was 1/8 of a wavelength (2pi), so pi/4
    Offline

    5
    ReputationRep:
    (Original post by metrize)
    35 for an A
    if that's the case maybe I can scrape a C
    Offline

    1
    ReputationRep:
    (Original post by ilovepotc)
    I got that
    I got that eventually, did a bit of trial and error and then worked backwards to check the answer haha.
    Offline

    1
    ReputationRep:
    (Original post by metrize)
    35 for an A
    Wishful thinking, I reckon 48 for an A
    Offline

    2
    ReputationRep:
    (Original post by 456CJ)
    Did anyone get alpha as 10
    Nahh I remember getting no answer for this one if I remember correctly
    Offline

    1
    ReputationRep:
    (Original post by Chickenslayer69)
    Think you had to use lambda = h/mv. With an alpha particle, there are 4 protons/neutrons, so the equation turns into lambda = h/4mv, leading to 4lambda = h/mv.
    Yeh I did 1/4 based on your logic as well. It's defo correct.
    Offline

    2
    ReputationRep:
    The paper is out of 69 or 70 still?
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Are unpaid trial work shifts fair?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.