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  1. X

    HOW WAS PHYSICS PAPER 2 AS!!!!!!!!!!!

    yep :D apart from electricity it wux ok...
  2. X

    HOW WAS PHYSICS PAPER 2 AS!!!!!!!!!!!

    u r variant 22 right?
  3. X

    how was physics paper 21

    wut was the current and emf of B wiv u:rolleyes:
  4. X

    Physics P21

    u think we had 2 right E=mc^2 i mean its not in the syllabus x_x
  5. X

    Physics: Post your doubts here!

    in the markscheme theres a mark for the unit write it(y)
  6. X

    Physics: Post your doubts here!

    that wuz when there was 3/4 of a wavelengh in da tube... itsnot related to hear 1st loud sound u need 1 antinode in da tube which is 1/4 lamda nd u get a new lamda :D
  7. X

    Physics: Post your doubts here!

    actually da current in both will be 0.42A cause p=IV then I=P/V
  8. X

    Physics: Post your doubts here!

    (i) take moments about p,clockwise=anticlockwise,so 2.4x0.45=1.2xtension and 0.45 came from 0.75-0.30 cause da weight is at da center since rod is uniform (ii) sum of upward forces= sum of downwards so tension in A is 2.4-0.9
  9. X

    Physics: Post your doubts here!

    power is the rate of doin work nd work is fxd then p=(fxd)/t and d/t is v then p=fv......and post da whole question 4 da cyclist
  10. X

    Physics: Post your doubts here!

    well an antinode is 1/4 of a wavelengh right? so given that l=45cm the antinode is 45 cm and wavelengh is 0.45x4=1.8 m aand u calculate the frequency from v=fxwavelengh
  11. X

    Physics: Post your doubts here!

    heyy can some1 help me wiv Q15 here hasnt da height decresed by half not 1/4??
  12. X

    Physics: Post your doubts here!

    hey um a little confused wiv effects of differnt changes to da doubles slit exp...if da light intensity increase the ms stated b4 dat brightness of bright fringes increases nd dark ones r darker? but shouldnt da dark ones stay da same bec even if da amplitude increases its still destructive...
  13. X

    3 Cs of life:choice,chance,change. you have to make da choice to take da chance if u want...

    3 Cs of life:choice,chance,change. you have to make da choice to take da chance if u want anything 2 change (Y)
  14. X

    Physics: Post your doubts here!

    q(7) b......in the ms and er it says for damage of supply to take place lamp A must be shorted ....why especially lamp A wasnt lamp c da shorted one in the quetion b4 ??? any 1 plzz thx in adv
  15. X

    Physics: Post your doubts here!

    nop its not in da as level my teacher never explained it nd dere r no questions about in da pastpapers
  16. X

    Physics: Post your doubts here!

    its easy if u understand (a)i.2 to get the total emf of the circuit we would add the emf of battery nd charger but as they have opposite polarity it would be the emf of charger minus that of battery bec normally charger has higher emf so its 14-E now for (ii) the V=IR u will substitute 14-E for...
  17. X

    Physics: Post your doubts here!

    q(7) b......in the ms and er it says for damage of supply to take place lamp A must be shorted ....why especially lamp A wasnt lamp c da shorted one in the quetion b4 it??? any 1 plzz thx in adv
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