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  1. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    1 mark max rest will fall in ecf
  2. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    devide by 10000
  3. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    yes cm^2 to m^2
  4. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    333333.33333 yea :p it was not cm to m it was cm^2 to m^2
  5. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    bro you got that 33.3 wrong you did not change cm into meter
  6. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    sensitivity one was B
  7. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    B i think it was constant increase and started above origin
  8. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    guys we did had to subtract as it said "F is the increase in force" 166 was the total force 116 becomes increase in force
  9. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    exactly
  10. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    it said to define "efficiency" not "percentage efficiency" i think :D
  11. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    for efficiency you had to write i think "the ratio of useful output power over total input" where power i think carry one mark
  12. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    yea answer was 116 something
  13. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    so if i wrote 2 cm for part A and 7cm for part b is it correct?
  14. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    what were the questions and answer of first 2 parts of lenses question!!! :D pls tell i think i only got that question wrong :/
  15. Abdul Hanan

    :P

    :P
  16. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    STAR FORMATION: -there is star dust in space -when these dust particles pass closer to each other they start attracting each other (gravitational force) -they come close to each other in a spiral motion (spiral inwards) -as they are coming closer, their speed is increasing and they collide with...
  17. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    oh.. thanks!!
  18. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    A little help with this one...... thnx answer=C
  19. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    sorry i'm late :p although the diagram is enough you may add this: place object infront of mirror. image will be at equal distance as object, from mirror. make lines to mirror from object and make lines from image to incident rays drawn to get reflected rays...
  20. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    ummm its a part of the syllabus have you studied these relay switch,transistors etc? reed switch is just a switch including a coil which is made electromagnet to turn on the other part of circuit...
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