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  1. mrnt3250

    Can someone upload a simplified igcse CRO diagram?!

    I'm not really good at drawing, but the pieces that you usually need are: Heating Filament, Cathode, Accelerating Anode, Y-Plates, X-Plates, Electron Beam and Fluorescent Screen.
  2. mrnt3250

    GUYS HELP 4 PHYSICS PAPER 3

    I know how to do it, so I just asked if I was checking the right question since he said explanation (usually an explaining question..). Thanks.
  3. mrnt3250

    Science Paper Timings

    Have you every ran out of time or something similar during an IGCSE science (physics/chemistry/biology) exam? I think the time given for paper 3 is a bit short. 1 hour and 15 minutes! I know if the candidate has studied well and writes just in points could even get extra time, but the time...
  4. mrnt3250

    GUYS HELP 4 PHYSICS PAPER 3

    What kind of explanation? The questions 7 in all variants, may/june and oct/nov is just about calculation and a blank space to answer..?
  5. mrnt3250

    PHYSIC P3 #important discussion# varient31 , 32 , 33

  6. mrnt3250

    PHYSIC P3 #important discussion# varient31 , 32 , 33

    Its not apollo 14! Just the relation of resistance and increase in the length and diameter of a wire.
  7. mrnt3250

    PHYSIC P3 #important discussion# varient31 , 32 , 33

    Yes there is. R = k * l / A Resistance = A constant * length / cross sectional area
  8. mrnt3250

    Need help with this physics problem

    Its correct.
  9. mrnt3250

    Physics, Chemistry and Biology: Post your doubts here!

    Since the critical angle is not given in the question, and it states that leaving through point Q, then it means that you have to measure the angle of incident, and reflect it with the same angle, by the use of a medium line. Do this at point Q and at point R, and then draw the middle...
  10. mrnt3250

    physics notes for paper 3 :) best of luck

    Thanks
  11. mrnt3250

    Physics Paper 3 Notes

    If you have any useful and exam-oriented notes from IGCSE Physics, post them here so everyone could get them.
  12. mrnt3250

    Done with Chemistry Paper 6 Variant 2 (62)

    The concentration and volume could vary. For example, there could be volume X of an acid but the same concentration (for each mole). You have to check if the concentration is changed, then the rate of reaction changes too.
  13. mrnt3250

    Done with Chemistry Paper 6 Variant 2 (62)

    It means that the solution becomes more dilute. (less concentrated). So rate of reaction decreases. Rate of reaction is affected by: *- Temperature *- Concentration *- Surface Areea And presence of a catalyst may affect it.
  14. mrnt3250

    If you have any question on chem p6 im ready you guys. Don't Worry!!

    No problem dear! Best way is to clear your doubts. This is the direct scan from my text book ( Endorsed by CIE ).
  15. mrnt3250

    If you have any question on chem p6 im ready you guys. Don't Worry!!

    I actually forgot that exact name, so I wrote an alternative :D Sharp Smell.
  16. mrnt3250

    If you have any question on chem p6 im ready you guys. Don't Worry!!

    Learning from mistakes is not a bad thing, I have done it many times. Just check your notes.
  17. mrnt3250

    If you have any question on chem p6 im ready you guys. Don't Worry!!

    Nah, burette is more accurate than measuring cylinder! Advantage: Measuring cylinder is easy to use and has a FAIRLY accurate results. Disadvantage: It is not as accurate as burette.
  18. mrnt3250

    Done with Chemistry Paper 6 Variant 2 (62)

    Just read my first post..
  19. mrnt3250

    If you have any question on chem p6 im ready you guys. Don't Worry!!

    Look, first you have to understand which side is the reactant and which side is the product. For example: 2N + 3H2 --> 2NH3 <--- In this equation, the Right side is the product and left side is the reactants. If we increase the pressure (We have to, for more yield), then the...
  20. mrnt3250

    If you have any question on chem p6 im ready you guys. Don't Worry!!

    Left side is the reactants, right side is the product (usually). So if the left side has fewer molecules, then some of the product will be decomposed back to reactants.
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