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  1. daredevil

    Physics O levels complete discussion

    Difference between evaporation & boiling:EVAPORATION BOILING 1.Takes place on the surface Occurs throughout the liquid 2.Temperature may change in this process Temperature remains constant 3.Takes place at any temperature Takes place at a constant temp. 4.Artificial heating is not required...
  2. daredevil

    Physics O levels complete discussion

    if u got Physics for You by Keith Johnson study it from there. otherwise study it from Explaining Physics by Stephen Pople. u'll get it. its pretty much based on learning... most of it at least.
  3. daredevil

    Physics O levels complete discussion

    added 2 points: 4. distance of object from mirror is equal to distance of image from mirror. 5. same colour 6. inverted front to back :)
  4. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    A capacitor stores charges by charging itself and dischrging. e.g. a fan. the fan slowly picks up speed tht is because of the capacitor in it and same goes for stopping the fan; it takes time. -| |- this is the symbol for a capacitor. it is important part of the mcq paper (the symbol). a...
  5. daredevil

    Physics O levels complete discussion

    hope this helps :) formulas are the backbone of physics so remember to revise all of them and practice questions to get the hang of applying them.
  6. daredevil

    Physics O levels complete discussion

    thanks dude!! real good. (y)
  7. daredevil

    Physics O levels complete discussion

    u probably have enough concepts of physics ... so just overview the book if u haven't revised it before. then do the past papers as many as u can. also go through the examiner's tips; marking schemes for about 3-4 years and examiners' report for at least 1-2 years and u'll do fine. that is my...
  8. daredevil

    Physics O levels complete discussion

    sticky? o.O
  9. daredevil

    Physics O levels complete discussion

    hey guyss discuss all physics problems here. Also plz give any notes or worksheets or questions on the chapter "Light" :)
  10. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    Phosphoric Acid for the hydration of ethene K2Cr2O7 (or any other oxidising agent) for oxidation of alcohol to carboxylic acid Aluminium Oxide or Silicon Oxide for Craking Process
  11. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    for test of sulphate... add dilute nitric acid then add barium nitrate. white precipitate is observed of barium sulphate.
  12. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    for cracking aluminium oxide or silicon oxide are used as catalysts... correct me if i'm wrong!
  13. daredevil

    yup :P

    yup :P
    • daredevil
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  14. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    MASS OF PURE SUBSTANCE/MASS OF TOTAL SAMPLE *100
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