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  1. M

    Physics: Post your doubts here!

    Yeah..! Every One is Different..! :) But this Is Just Propotionality.. Read that Question Again And Solve it Calmly ..! I m Sure U will do it This Time :)! Gd luck
  2. M

    Physics: Post your doubts here!

    No Yara..! Sad Mat Ho..! :)
  3. M

    Physics: Post your doubts here!

    Look The Bottom Line is.. Amplitude is Changed By Cos 60 (0.5).. So I= (0.25)^2=0.5 Bus!!
  4. M

    Physics: Post your doubts here!

    :)! Easy Thing Ko Complicated Bana Diya !
  5. M

    Physics: Post your doubts here!

    Hahaha..! TRUE Why Streching this Seriously ! :p!
  6. M

    Physics: Post your doubts here!

    You Probably Didnt Explain it Well Enough :p!! IF u Mean it That Way..! Than Great :)!
  7. M

    Physics: Post your doubts here!

    Acha Sorry..! Misunderstood :p !
  8. M

    Physics: Post your doubts here!

    Wht?? My Method?
  9. M

    Physics: Post your doubts here!

    Look In Paper ONE there is Way Called Using Proportionality To Solve Equations..! When they Say Something Is Directly Proportional.. It Mean if One Double.. i.e It changes By a Factor Of Two.. So other Thing must also Change by Factor of Two..! So We Know I ∝ A^(2).! Now Find Factor by Which...
  10. M

    Physics: Post your doubts here!

  11. M

    Physics: Post your doubts here!

    I Only Used Proportionality.. Like When You Say Length Is Doubled.. So Resistance is Doubled..! We can see that from Equation:- R= ρL/A.. And R ∝ L...! :p Ab Samjh AYA :)!
  12. M

    Physics: Post your doubts here!

    Why Do You Complicate Things ! :confused:!
  13. M

    Physics: Post your doubts here!

    For Q 25) Its Simple..!! They Said Amplitude=Cos a! And We Know I ∝ A^(2).! Amplitude Changes By Cos 60.. So I= (cos 60)^2= 0.25 :p!
  14. M

    Physics: Post your doubts here!

    Thanx A ton (y)!
  15. M

    Yes! ;)

    Yes! ;)
  16. M

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w03_qp_1.pdf Q12! Plz Thnx :) sagar65265
  17. M

    So Ans Is D.. According to The Paper..! :)

    So Ans Is D.. According to The Paper..! :)
  18. M

    Ok..This is Tricky But involves Math Skills..!! Look Proton Has Charge of (+)1.! We need to end...

    Ok..This is Tricky But involves Math Skills..!! Look Proton Has Charge of (+)1.! We need to end Up at One Using Values of Up quark and Down Quark.! If U Take 2 UpQuarks = (+)(2/3) * 2 = (+)(4/3) And One Down Quark = (-)(1/3) * 1 = (-)(1/3) When You add them Together.. (+)(4/3) + (-)(1/3)= (+)1
  19. M

    Physics: Post your doubts here!

    Guys , Here is My Way :)! Speed (Avg) = Total distance/Time.. So 40/2.5=16 ms^-1 Now check How many SF is Time and Distance Given ? Its 3 SF.. So Speed Must be 3 SF :p! So Ans would be 16.0 ms^-1 .. Hence Ans is C or B Possible..! Then Add Fractional Uncertainties of Time and Distance (Like in...
  20. M

    Physics: Post your doubts here!

    If u Convert Quantities into Base Units.. The Check If Right Hand Side Equals LEFT hand Side..! If it does then Equation is true And Valid..! If u Couldn't The I would Explain Further :)! Hope i Helped :)!
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