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    (Original post by x_reggg)
    nope.
    i take the exam at 0915GMT :p:
    so basically in 30mins roughly are you goin to b esupervised for the rest of the time then?
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    (Original post by ossie007)
    so basically in 30mins roughly are you goin to b esupervised for the rest of the time then?
    haha i might have messed up my time differences. i'm doing it at 1715GMT+8.

    naa not supervised. they can't keep us until like 930pm:mad:
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    lol 4get the message i sent den hehe
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    In dubai, we're doing it at 3:20 pm....
    Thats like, 11: 20 london time. :/
    Bugger. Its in like 3 hours time.
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    wuts bubble chamber??
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    It's a chamber used for detecting charged particles. The chamber is filled with a superheated liquid, mostly hydrogen. As the particle moves through the chamber, the liquid vaporises around the ions, forming bubbles. The chamber can the be expanded by a piston to increase the size of the bubbles, and a photograph taken. There is a magneti field accross the chamber, causing circular paths, where the radius is proportional to the momentum of the particle, and differently charged particles spiral in different directions.

    Hope that helps
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    (Original post by valentine_strongrod)
    wuts bubble chamber??
    its a chamber with liquid hydrogen and charged particles ionise the hydrogen particles and leaves a trace behind to create bubbles which will then reflect the light in the photograph
    good luck all
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    man i just lost my notes on spark/drift chambers

    can anyone explain it please?
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    spark chamber - box with charged plates and a gas in it, used to detecting charged particles. As the particle arrives it ionises the gas. a trigger system is used to increase the electric field and produce a spark wherever the particle is located
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    my exam is in 1 hour and 45 mins btw.


    GOOD LUCK TO ALL =)
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    Whats a drift chamber? Our teacher never taught it to us so I assumed we didn't need to know it but it keeps poping up on these threads.
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    Good luck everyone! Don't stress yourselves out. You need to walk into that exam calm to be able to do well.
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    (Original post by gigguk)
    Whats a drift chamber? Our teacher never taught it to us so I assumed we didn't need to know it but it keeps poping up on these threads.
    I doubt it would come up, but it is similar to a spark chamber - only a newer version. I didn't really revise that too much so I'm not incredibly sure on that.
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    I'm gonna go to school to finish off physics once and for all.

    Laters, and good luck
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    closed due to 12 hour rule - see announcement.
 
 
 

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