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  1. B

    [Requesting]Application[Physics and Chemistry] notes

    The current application booklet for chemistry and physics is a too huge and difficult to understand since we got only 1 month to revise for November session. If anyone made a summary of these notes or your notes explain the concepts clearer and more direct to the point than the booklet please...
  2. B

    [Request]Application[Physics and Chemistry] notes

    The current application booklet for chemistry and physics is a too huge and difficult to understand since we got only 1 month to revise for November session. If anyone made a summary of these notes or your notes explain the concepts clearer and more direct to the point than the booklet please...
  3. B

    Physics: Post your doubts here!

    The problem is for c(ii) i use Vout/V in=1 +Rf/R1 Replacing the values Vin=+0.4 , Rf =120 R1=5 i get answer :10 V But the answer from marking scheme is 9 V . Can someone tell me the Reason ? is it linked to the diagram in part B ?
  4. B

    Physics: Post your doubts here!

    Can someone tell me how to measure % uncertainty in a stopwatch For example i did an oscillation experiment and got time taken 28.05 seconds how to calculate % uncertainty ?
  5. B

    Physics: Post your doubts here!

    2(a) (ii) number 2 for acceleration. From marking scheme : mg – F = ma hence a = g – [F / m] m = ρ × V = ρ × 4/3 π R3 = (1.4 × 10–5) C1 a = 9.81 – [6.9 × 10–5] / ρ × 4/3 π × (1.5 × 10–3)3 (9.81 – 4.88) M1 a = 4.9(3) m s–2 How ? and why we got/used this equation mg – F = ma ? why why...
  6. B

    Big problem in maths ( help ! )

    THanks. As you mentioned differential is tough , i dont have any problems in seperating variable the problem comes in the long paragragh given and it says to prove you reach this equation .. LIKE RATE OF CHANGE IN P1
  7. B

    Physics: Post your doubts here!

    where did 0.5 come from ?
  8. B

    Big problem in maths ( help ! )

    Thanks i will try it now itself
  9. B

    Big problem in maths ( help ! )

    P1-circular measure , rate of change, problems in finding range of values in inequalities , integration, AP GP and finally coordinates geometry] P3-partial fractions expansions ,integration ,differential equations complex numbers for finding Argument. if you have good notes on these thing do...
  10. B

    Big problem in maths ( help ! )

    i revise continiuosly the formulas etc but still when i work out past papers questions am and confused and most of the times i dont get the answers . Any solution for that ?
  11. B

    Physics: Post your doubts here!

    Ans : A how ?
  12. B

    Physics: Post your doubts here!

    ANS : A how ?
  13. B

    Physics: Post your doubts here!

    ANS : C how ?
  14. B

    Big problem in maths ( help ! )

    Its an internal college exam.Not cambridge examination.
  15. B

    Big problem in maths ( help ! )

    i just had my internal exams at college and i got an overall E in Maths.( if a few marks would be missed i would have got U) My paper marks are : p1-28/75 p3-27/75 S1-30/50 M1-27/50 There are only 3 months preparation left for the November Cambridge exams ; i know that getting an A is...
  16. B

    Physics: Post your doubts here!

    (ANS : D ) How ?
  17. B

    Physics: Post your doubts here!

    Thanks
  18. B

    Physics: Post your doubts here!

    In a simple electrical circuit , the current in a resistor is measured as (2.50 ± 0.05) mA. The resistor is marked as having a value of (4.7 Ω ± 2%). If these values were used to calculate power dissipated in the resistor , what would be the percentage uncertainty in the value obtained ? A.2%...
  19. B

    Physics: Post your doubts here!

    A car is travelling with uniform acceleration along a straight road. The road has marker posts every 100m. When the car passes one post , it has a speed of 10m/s and , when it passes the next one , its speed is 20m/s What is the car acceleration ? A.0.6m/s^2 B.1.5m/s^2 C.2.5m/s^2 D.6.0m/s^2...
  20. B

    Chemistry: Post your doubts here!

    HOw you got volume of oxygen 80cm(cube) is there any kind of formula you used ?
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