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Recent content by Umair Abid

  1. U

    Physics: Post your doubts here!

    Yeah sorry, it is 9V. My bad.
  2. U

    Physics: Post your doubts here!

    Thanks, that's reassuring.
  3. U

    Physics: Post your doubts here!

    For question 36, the slider is fitted with 3 Ohm resistor so think of it as something as that can move above or below the 3 Ohm resistor but not move as far as to the other resistors. The 4 Ohm resistor will have a P.d of 4V across it according to the P.d formula: 4/(4+3+2) * 12 So 5V from total...
  4. U

    Physics: Post your doubts here!

    Question 6: Original length is 0.8+0.2 because of systematic error, it appeared less. Uncertainties are added up so 0.02mm + 0.02mm = 0.04 total uncertainity. UC % = 0.04/1.0 * 100 = 4%
  5. U

    Physics: Post your doubts here!

    Your reply really made my day but this is question 1 we are talking about. My trend in graph is opposite and the whole table of results has wrong values of x (other calculations, decimal places, s.f, column titles with there units are perfectly fine though). My Sir said that I may loose upto 5-6...
  6. U

    Physics: Post your doubts here!

    Yeah so I made a huge blunder in my Physics paper 3 practical exam. Instead of measuring and recording length of x in question 1, I measured it from the opposite side so my readings are kind of 1-x rather than x. This did mess up my trend in graph as well. Up to how many marks will I lose for...
  7. U

    Help needed regarding Physics practical paper 3.

    Meh thread not needed anymore.
  8. U

    Physics Inclined Plane experiment help needed, URGENT!!!!

    Can anyone help to identify sources of limitations and improvements for sliding a container down an inclined plane.
  9. U

    Worst math paper in the history of CIE

    It was without replacement
  10. U

    Worst math paper in the history of CIE

    Yeah Insha Allah it will be fine. Threshold will be pretty low so everyone mustn't get discouraged or lose momentum. Just focus on doing better in other subjects to make up for it. :)
  11. U

    How was Chemistry Paper 61 May June 2015

    tbh I'm a bit nervous about chems and phy's paper 1 and 3
  12. U

    Worst math paper in the history of CIE

    I actually think w14's were a bit tougher especially that one probability one. Actually look me 8 mins to solve the last part when trying it.
  13. U

    How was Chemistry Paper 61 May June 2015

    CIE, throwing in new unexpected shit each year.
  14. U

    Worst math paper in the history of CIE

    Yeah but to call it "Hardest paper ever" is a bit of an exeggeration.
  15. U

    How was Chemistry Paper 61 May June 2015

    Graph was a curve, not the smoothest in the history but still a fine curve. Actually bromine bleaches damp litmus paper but its a lil bit too slow so I don't know whether no effect can be accepted of not?
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