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  1. J

    Chemistry: Post your doubts here!

    man sorry but if u say the wrong thing then how can i give u credit?If u give a good explanation i can only say thnx and like
  2. J

    Chemistry: Post your doubts here!

    yes i did but plz try to explain all of the questions
  3. J

    Chemistry: Post your doubts here!

    apart from Q37 all ur explanations are really not adequate...Plz someone explain to me
  4. J

    Chemistry: Post your doubts here!

    They are not in the same period
  5. J

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s09_qp_1.pdf Q11 Why cant answer be D Q13 What to do in this? Q31 How can radius be same? Q34,Q35,Q37
  6. J

    Chemistry: Post your doubts here!

    Sorry need a better explanation...
  7. J

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w10_qp_12.pdf In Q34 why is statement 1 true?
  8. J

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9701%20-%20Chemistry/9701_s10_qp_12.pdf Q12,15,21,33,40
  9. J

    Chemistry: Post your doubts here!

    For Q39 i dont understand what will happen when aqueous akali is added to compund 2(ester) and compound 3(nitrile)?
  10. J

    Chemistry: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w11_qp_12.pdf 9,10,35 And 39
  11. J

    Physics: Post your doubts here!

    3(c) The useful work done is 600J and u have to find work done against resistance.Now in b u calculated loss in in kinetic energy and gain in potential energy.So Useful work done-work done against resistance=Gain in potential +gain in kinetic enrgy 600-W=1170-1240(kinetic energy will be negative...
  12. J

    Physics: Post your doubts here!

    22 23 or 21?
  13. J

    Physics: Post your doubts here!

    be more specific like paper and question part
  14. J

    Physics: Post your doubts here!

    What i dont understand is that Pd across J to F why do we take current I1 shouldnt it be I2?
  15. J

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w11_qp_22.pdf Q5 a(ii,iii)
  16. J

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w09_qp_12.pdf Q11
  17. J

    Physics: Post your doubts here!

    Q4 For L units are m,for time T s and radius a m.sin theta has no units.Now u put the units ignoring 3: m(m^2/P)=Qs^2 Now if P has units m^2 and Q has ms^-2 then on both sides there will be m so thats why B is correct. Q26 The length of cube is l,its area of crosssection is l^2 and force is...
  18. J

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w09_qp_12.pdf Q11 For Q23 answer is B cuz speed of light in vacuum is constant.Is my reasoning correct or is their any other reason?
  19. J

    Physics: Post your doubts here!

    In Q5 why cant B and D be correct? http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w06_qp_1.pdf
  20. J

    Physics: Post your doubts here!

    Q9 with proper explanation cuz i dont know what it is asking. For Q26 why cant D be correct cuz at antinodes displacement is maximum ....???
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