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  1. Z

    Physics: Post your doubts here!

    That q took some time tho
  2. Z

    Physics: Post your doubts here!

    What did u get the resultant torque in q where there were 8 forces?
  3. Z

    Physics: Post your doubts here!

    Btw there were atleast 5 repeated qs
  4. Z

    Physics: Post your doubts here!

    But they said diameter was 5 cm wouldnt that too be too much for alpha particles?
  5. Z

    Physics: Post your doubts here!

    Was that alpha experiment?
  6. Z

    Physics: Post your doubts here!

    I wrote 12,ughhhhhh -___- I took time as 8s should have taken around 9 or 10
  7. Z

    Physics: Post your doubts here!

    Was the ans to firs q 12 or 9?
  8. Z

    Physics: Post your doubts here!

    It can be lower than that as well but cant be higher than that!!
  9. Z

    Physics: Post your doubts here!

    My guess is that gt gonna be 27-28
  10. Z

    Physics: Post your doubts here!

    I found it alright,neither difficult nor easy.There were many repeated qs fortunately so time management wasnt an issue
  11. Z

    Physics: Post your doubts here!

    C?
  12. Z

    How was p12 9701 2017

    justpastpapers.com/wp-content/uploads/2017/05/9702_m17_qp_12.pdf
  13. Z

    How was p12 9701 2017

    which said there would be effervescence with Na2co3?
  14. Z

    How was p12 9701 2017

    How are you guys preparing for phy P1,i did march 17 paper got 38.Dont feel like reading the book,any link for useful notes?
  15. Z

    How was p12 9701 2017

    B for 1 A for 2
  16. Z

    Physics: Post your doubts here!

    Its 10^11
  17. Z

    Physics: Post your doubts here!

    total resistance of circuit is 3 ohms,suppose the emf of cell is 12V.On lhs the pd would be 2/3*12=8v and on rhs 4v.So I1 would be 8/3=2.67A and I2 would be 4/2=2A so I1>I2
  18. Z

    Physics: Post your doubts here!

    E=f/q 0.50*9.81/1000*1000/1.0^10-12
  19. Z

    How was p12 9701 2017

    you are confusing this q with the acid rain one where this thing about so3 was given
  20. Z

    How was p12 9701 2017

    Third one was CO+NO=N2+CO2 so platinum is used here
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