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  1. Saad Mughal

    https://www.xtremepapers.com/community/threads/advice-for-physics.27162/ Please make this sticky...

    https://www.xtremepapers.com/community/threads/advice-for-physics.27162/ Please make this sticky for tonight so that everyone can see it. Thanks. :)
  2. Saad Mughal

    Advice For Physics

    - Radio waves have the lowest frequency, largest wavelength. Gamma rays have the highest frequency, shortest wavelength. Similarly, in the dispersion of light, red light have the largest wavelength so they REFRACT the LEAST. Violet light have the shortest wavelength so they REFRACT the MOST. -...
  3. Saad Mughal

    Advice For Physics

    Hello Everyone! Here's the much requested thread for Physics. It contains pointers for the paper and some clarifications of syllabus content. :) - Vector quantities have both a direction and magnitude; scalars only have magnitude. - Measurements that are long and need a flexible (curved)...
  4. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    No, but I'm making a thread that you can read.
  5. Saad Mughal

    Maths Syllabus D Paper 12.

    Yeah, no problem. That was being done directly anyways. I just showed one step.
  6. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    It is D. 40 = x - 2/20 * 100 0.4 * 20 = x - 2 x = 8 + 2 = 10 cm
  7. Saad Mughal

    Maths Syllabus D Paper 12.

    Yes, but don't miss the units, they are absolutely essential.
  8. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    I don't have notes, but I'll tell you. There are 2 things to consider for thermometers, one is responsiveness and one is sensitivity. -Responsiveness is how quickly the thermometer responds to a temperature range. -The sensitivity is how big a change is there (for example in volume of mercury)...
  9. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    What do you mean? In the syllabus, it comes under Temperature.
  10. Saad Mughal

    General paper discussion

    I didn't give those.
  11. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Oh. :p
  12. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    "length of 9cm WHEN loaded with a 200g mass". So, original length of spring = 9 - 2 = 7 cm. With 100g mass, length of spring = 7 + 1 = 8 cm.
  13. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    It is C.
  14. Saad Mughal

    General paper discussion

    It can be high. It can go up to 94 %! It's not necessary that the thresholds for A and A* are at a defined distant boundary, in fact the threshold for A* depends on the threshold for A and C. 3 Subjects? I can't say anything for English. As far as Chemistry is concerned, I believe it will be...
  15. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    This is kinda basic logic, but there is a formula behind it too; it is. Radioactive substance remaining = Original amount of substance * (1/2) ^ n, where n = number of half lives.
  16. Saad Mughal

    Biology; Chemistry; Physics: Post your doubts here!

    Background count = constant = 10 counts/min. So, Radioactive source count = 400 counts/min. After three half lives, the radioactive source count = 400/8 = 50 counts/min. After 15 days, the count rate = 50 + 10 (b.c) = 60 counts/min. C.
  17. Saad Mughal

    General paper discussion

    When you give the CIE papers, the paper may be easy or it may be hard. So, to account for that, CIE takes a cumulative boundary for the grades. Which means that the grades are not at 90, 80, 70. They are lower or higher according to the paper. For example, if a lot of people did the Chemistry...
  18. Saad Mughal

    Maths Syllabus D Paper 12.

    Not now. It's against the rules. We can discuss tomorrow. Just write down the questions you want to ask on a notepad or something. We can discuss how the paper went. Good for me, ALHUMDULILLAH, yours?
  19. Saad Mughal

    Lol, yeah. Went brilliant ALHUMDULILLAH. I didn't practice anything yesterday so was worried...

    Lol, yeah. Went brilliant ALHUMDULILLAH. I didn't practice anything yesterday so was worried, the paper turned out to be a delight! :D
  20. Saad Mughal

    Sorry. Wasn't online back in the morning. :/

    Sorry. Wasn't online back in the morning. :/
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