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    I hated that last question. And threshold frequency part from that a good exam
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    What happens when intensity's constant and frequency decreases? I put rate of emission decreases until fmin.

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    How many similarities between hadrons and leptons were we supposed to come up with?

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    (Original post by jazzynutter)
    How many similarities between hadrons and leptons were we supposed to come up with?

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    They meant between baryons and mesons I think :P
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    I reckon I may have finally broken 3 marks on the 6 marker, made a stupid mistake on the first question calculating specific charge. I think grade boundaries will be high
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    Did anyone get 30000 ohms for the last question?
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    (Original post by Ephixa)
    They meant between baryons and mesons I think :P
    Nah mate, they meant between Leptons and Hadrons, as far as I could tell. I wrote the differences between both of them anyway. But I think they meant leptons and hadrons.
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    (Original post by 123456789012)
    Did anyone get 30000 ohms for the last question?
    yes I did! Thought this paper was quite nice, but anticipating grade boundaries to be really high I wanted a 6 marker on an experiment! But oh well, at least its done now!
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    What did everyone do for the specific charge on the first question? and what did everyone get for the very last? I got 30000ohms
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    Last question

    V (output) = (R1/ R1+R2+R3) X V(source)

    0.75 = (5/ 5+R2+5) X 6

    Rearrange R2=30kohms

    R2--> variable resistor resistance

    Answer: 30,000ohms

    so happy


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    (Original post by 123456789012)
    Did anyone get 30000 ohms for the last question?
    Yessssss

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    (Original post by Son234)
    Last question

    V (output) = (R1/ R1+R2+R3) X V(source)

    0.75 = (5/ 5+R2+5) X 6

    Rearrange R2=30kohms

    R2--> variable resistor resistance

    Answer: 30,000ohms

    so happy


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    Would I get 2 marks for getting 30ohms as i didnt do 10^3


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    (Original post by Maloneyyy)
    What did everyone do for the specific charge on the first question? and what did everyone get for the very last? I got 30000ohms
    I did the specific charge of the entire ion, thus including the mass of the electrons, and I also got 30k ohms!
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    Does anyone usually put an unofficial mark scheme up for physics?

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    The similarity they wanted for leptons and HADRONS

    Is that leptons and HADRONS can interact together by the WEAK interaction

    Eg proton+electron capture

    That was the similarity


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    (Original post by TheBeesKnees)
    I did the specific charge of the entire ion, thus including the mass of the electrons, and I also got 30k ohms!
    So you did 18 electrons and 20 protons x the charge of the electron? nice!
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    OMG I loved that 6 marker! Overall I found the paper nice whilst others found it fairly hard. Not sure what the boundaries are gonna be, but I'm hoping its low to boost my UMS up
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    (Original post by Jimmy20002012)
    Would I get 2 marks for getting 30ohms as i didnt do 10^3


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    You would definitely get one I'm not entirely sure about 2 but depend on the examiner


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    What did you get for the specific charge? I got 4.0x10^7 Ckg^-1.
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    4.0x10^6
 
 
 
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