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  1. X

    AS Physics P1 MCQs Preparation Thread.

    hey thnx a lot...bt cn u solve d Question as wel...? d one dat i've attached?
  2. X

    AS Physics P1 MCQs Preparation Thread.

    yep...its A...how do u do it?
  3. X

    AS Physics P1 MCQs Preparation Thread.

    no d answer is A. evn i m getting C... :p
  4. X

    AS Physics P1 MCQs Preparation Thread.

    pls help me wid dis Q...
  5. X

    AS Physics P1 MCQs Preparation Thread.

    how do v calculate the reading on a micrometer screw gauge in general? n also solve dis Questn pls....
  6. X

    AS Physics P1 MCQs Preparation Thread.

    so what is the answer?
  7. X

    AS Physics P1 MCQs Preparation Thread.

    can sum1 post the solution for this questn pls? :)
  8. X

    AS Biology P1 MCQs Preparation Thread

    hey see Q.30 of the following ppr...its similar to the 4th doubt...bt little different...can u pls explain dis Question as well.. here'z the link:- http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_w02_qp_1.pdf thnx! :)
  9. X

    AS Biology P1 MCQs Preparation Thread

    how do v take snapshots from pdf files?
  10. X

    AS Physics P1 MCQs Preparation Thread.

    for which question was that video posted...can sum1 post it for me pls? ;)
  11. X

    AS Physics P1 MCQs Preparation Thread.

    i've got an easier solution i guess... :p in an elastic collision, relative speed of approach=relative speed of separation before collision relative speed of approach= Ub-(-Ua) =Ub+Ua after collision relative speed of separation= Vb-Va hence, Ub+Ua=Vb-Va ==> A
  12. X

    AS Physics P1 MCQs Preparation Thread.

    here...dey say dat the detected signal decreases till X and then increases so there has to b a dark fringe at X and den a bright fringe after dat... so der is destructive interference taking place at X so the path difference has to be (n+1/2)lambda so here S2X-S1X=1/2 lambda=lambda/2 ==>C
  13. X

    AS Physics P1 MCQs Preparation Thread.

    can u xplain properly ki y did u divide by 2?
  14. X

    AS Physics P1 MCQs Preparation Thread.

    aah...c...keep dat formula in mind while solving such Questns... n(lambda)=d.sin(theta) now...if the no. of lines per metre are increased so the grating spacing decreases ryt? (e.g. if there r 300 lines/metre, d1=1/300 and if there are 400 lines/metre, d2=1/400....so here d2<d1...get it?)...
  15. X

    AS Physics P1 MCQs Preparation Thread.

    can any1 pls explain to me Q.21 of the following ppr....the answer is the ms is C...how? http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w09_qp_11.pdf and also Q.10 for the same ppr.. :p
  16. X

    AS Physics P1 MCQs Preparation Thread.

    Q.8:- c here u cant directly find out the time taken for last 10m so u got to find out the time taken for 40m and for the first 30m separately and then subtract the 2... consider s=40m first, so u=o, a=9.81 so using s=ut+0.5at^2 we get t=2.855s Then considr s=30m so again using the same formula...
  17. X

    AS Physics P1 MCQs Preparation Thread.

    i dnt noe d Q.8 bt here's how v solve Q9:- vertical motion s=ut+1/2at^2 (s=1.25, u=0, a=9.81) so t=0.5055 horizontal motion speed=dist/time (t=0.5055s, dist=10m) thus speed=20 m/s ==> D
  18. X

    As physics p1 MCQS YEARLY ONLY.

    hey can u explain the Q.15 again pls? n for Q.14...y dont v consider W? usually ven solving such questns v consider all the possible forces acting on the object ryt?
  19. X

    AS Physics P1 MCQs Preparation Thread.

    oh ya....thnx! i dint c dat only!
  20. X

    AS Physics P1 MCQs Preparation Thread.

    how do u upload such screen shots btw? :p
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