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  1. periyasamy

    Physics: Post your doubts here!

    Guys for this question .Am i doing the right way? First do relation that is resistance is inversely proportional to area.Then find area for both using the diameter given .Then relate the resistance with area.Is this rite?
  2. periyasamy

    Physics: Post your doubts here!

    For the question 10)---w-t=ma,,,,,,((120-90)9.81)=200a a=2 v2=u2+2as substitute in acc value,use the...
  3. periyasamy

    Physics: Post your doubts here!

    Guys need help here.In this question i get it that the panel 1 and 3 is series together n parallel to 2 ,4.That can be seen by imagining the whole diagram as a circuit.But i dont get it why in option d has a resistor fortm object between points 1 and 3...Thank u.
  4. periyasamy

    Physics: Post your doubts here!

    I think for question 11,the for both has same reaction force as the weight for the both objets r same.While for the tension thing, I am not sure.Hope someone else here give a hand. For the second question,some one else explanation ---- first... since applied force is constant, the torque (F*d)...
  5. periyasamy

    Physics: Post your doubts here!

    Thank u.
  6. periyasamy

    Physics: Post your doubts here!

    cant open your document.
  7. periyasamy

    Physics: Post your doubts here!

    Hai guys,need help here. My question is if question ask maximum kinetic energy than it is in positin2 ,rite?Thank u.....
  8. periyasamy

    Physics: Post your doubts here!

    Thanks man,super example.
  9. periyasamy

    Physics: Post your doubts here!

    Thank u boss.:)
  10. periyasamy

    Physics: Post your doubts here!

    Hello guys.Does the term increase in separation of fringes means that the x value in formula lamda=ax/d increase or decrease?Thank u.
  11. periyasamy

    Physics: Post your doubts here!

    Bro for 1st question I am not sure.My logic is this,the gradient is FL/AX Gradient of p much steeper than q.So the young modulus of p must be greater than q However,based on m=fl/ax,u find out than when gradient value is larger,extension is smaller.Than shows option a is wrong. I guess u...
  12. periyasamy

    Physics: Post your doubts here!

    For the 1st question,its simple.Get the volume by density formula.Then square root it with 3 n u will gwt the distance. I am not sure with the second one.
  13. periyasamy

    Physics: Post your doubts here!

    Boss ,1st question option a and d cannot as the emf never changes in whatever situation.It is the p.d that differs.How can it be work overcome against resistor??.It must be internal resistance because it is not the overall voltage that is significant here but it is the p.d across dry...
  14. periyasamy

    Physics: Post your doubts here!

    Good job buddy.Nice explanation.Exeptional........
  15. periyasamy

    Physics: Post your doubts here!

    Hai guys,anyone can explain why is z compression?I think i know why point x n y is tension as it is against weight.
  16. periyasamy

    Chemistry: Post your doubts here!

    This one someone posted before.... we have 3 products.. ethene methane and propene... if i mole is produced by cracking, then o.5% will be of ethene(as mentioned in the q) then 0.25 of propene and .25 of methane is produced... .25+.25+.5=1... to convert .25 into proper fraction, we need to...
  17. periyasamy

    Malaysia.

    Malaysia.
  18. periyasamy

    Physics: Post your doubts here!

    No problem,buddy.
  19. periyasamy

    Physics: Post your doubts here!

    Isnt a vector diagram is definitely with 90 degrees?Try look at the notes i am not sure.
  20. periyasamy

    Chemistry: Post your doubts here!

    Boss what is answer for question 23?
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