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  1. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    Why after she see's :/ ????? Temme now na :(
  2. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    Well watch momentum part in this video ---> CLASSICAL MECHANICS If you think I am wrong ._. Video from 11:21 minute
  3. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    Lol.. I wanna know... on what basis you said my answer is invalid ? o_O :eek:
  4. Thought blocker

    I am repeating my As level.

    All... Except Physics paper 2 and Pure Math 1
  5. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    Why ? For momentum to be conserved Pi = Pf so Pi = 2mu - mu = mu so Pf for A,C,D = mu hence they are conserved, but C and D are inelastic collision so A... How does it not make sense ?
  6. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    I think this is a long method...
  7. Thought blocker

    I am repeating my As level.

    mehria I want your opinion !
  8. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    In question A,C and D are conserved as Pi = Pf But C and D are inelastic collision, so answer is A :)
  9. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    Ok got it :)
  10. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    Sorry, I posted of another paper, I solved it today for someone, but question is different, gimme some time :)
  11. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    hmm.. let's see.. it is given : 500 lines in 1 mm, therefore, 1 line = 0.001/500 = 2 * 10^-6 the general equation to find the maximum no. of order, i.e the maximum no. of images = d/lamba = (2 * 10^-6)/(600*10^-9) = 3.33 so, the maximum no. or order is 3, but, you have to consider the other 3...
  12. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    21) use the formula for E E = F L / Ax rearrange to get the ratio x / L on one side (change in length / original length) you'll get is x / L = F / E A : Where - (A = pi r ^2 ) = 20 / 2 * 10^(11) * pi x (2.5 * 10^(-4))^2 = 5.1 * 10^(-4) multiply this by a 100 to get the percentage 5.1 x 10^-4 x...
  13. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    25) Use the formula (2n - 1)*75 i.e, for n = 1 we have frequency of 75Hz we are asked for n = 2,3 n = 2 --> 3*75 = 225 n = 3 --> 5*75 = 375 Hence answer is D 31) Q=ne "n"denotes number of electrons "e"=1.6x10^-19 sup Q=IT substitute both equations IT=ne or I/e=n/t 10/1.6x10^-19 Hence answer is C
  14. Thought blocker

    As physics p1 MCQS YEARLY ONLY.

    P initial = 2mu - mu =mu And for momentum to be conserved, P initial = P final So check it for all question.. Option A) -((2mu)/3)+(5mu/3) = 3mu/3 = mu so momentum is conserved Pi = Pf Option B) -((2mu)/6)+(2mu/3) = 1/3mu = Momentum is NOT conserved Pi =/(not equal) pf Option C)...
  15. Thought blocker

    <3

    <3
  16. Thought blocker

    I think more happiness would be now.. Isn't it :) :'(

    I think more happiness would be now.. Isn't it :) :'(
  17. Thought blocker

    Aww... :)

    Aww... :)
  18. Thought blocker

    Obviously.. sis. np... No need to thank blocker :)

    Obviously.. sis. np... No need to thank blocker :)
  19. Thought blocker

    I am drowning down in the nature of Melancholia :'( Save me.

    I am drowning down in the nature of Melancholia :'( Save me.
  20. Thought blocker

    Check convo, please. :'(

    Check convo, please. :'(
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