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  1. Arshiful

    Physics: Post your doubts here!

    please if anyone of u know the answer to the question pls do help i will also be thankful if you can give me a valid explanation for ur answer :D thank u in advance
  2. Arshiful

    Physics: Post your doubts here!

    pls i need help in this question: in 2 a i suppose i get by using meter rule i measure d by repeating and finding the average value but what will be the range of estimated uncertainty to calculate the percentage uncertainty..... and will the percentage uncertainty be halved due to...
  3. Arshiful

    Physics MCQs thread.

    can some one anyone please help me Can anyone of you post the force extension graphs of ductile polymeric and brittle matterials and explain them a bit anyone please!!!!! :(
  4. Arshiful

    Physics MCQs thread.

    some one please explain me this urgent please in details
  5. Arshiful

    Physics MCQs thread.

    Is it B ?
  6. Arshiful

    Physics MCQs thread.

    I managed to find the answer as efficiency doesnt have any unit so SI unit of both denominator and numerator cancel out I know this isnt the right way to answer the mcq someone pls explain it in details...... ThNx Xhazemx for the previous answer...
  7. Arshiful

    Physics MCQs thread.

    pls explain the ans of this question Ans B explain it pls
  8. Arshiful

    Physics MCQs thread.

    drawing a closed triangle that is a vector diagram helps this kinds of question, pls anyone correct me if i am wrong i did this by drawing a closed triangle as i learned that a closed triangle vector diagram represents a body to be in equilibrium and so my ans is C
  9. Arshiful

    Physics MCQs thread.

    read the q again before reading it: same material (i.e) copper so resistivity (rho"P") same length in both case same (x) in P takin cross sec area= 56 cm^2 so R=Px/56 in Q lets divided the area equally into given seven wires cross sec of each wire is 8 cm^2 resistance of each wire = Px/8...
  10. Arshiful

    Physics MCQs thread.

    thnx @xhazemx
  11. Arshiful

    Physics MCQs thread.

    Yes it is D pls explain .........
  12. Arshiful

    Physics MCQs thread.

    Summer 04 #9 pls some one explain this ques to me in details......
  13. Arshiful

    Physics MCQs thread.

    Thanks I got it too.... :)
  14. Arshiful

    Physics MCQs thread.

    In my explanation I said I1<I2 and V1>V2 so C
  15. Arshiful

    Physics MCQs thread.

    Imagine pipes and water when the diameter of the pipes are small the ease of flow of water is less whereas when the diameter of the pipes are bigger the ease of flow of water is much more so when the value of resistor is high it means that the flow of current is reduced and when value of...
  16. Arshiful

    Physics MCQs thread.

    What is the ans is it C?
  17. Arshiful

    Physics MCQs thread.

    can anyone please explain me the relationship between upthrust, weight and air resistance of a falling body in a fluid pls i just dont seem to understand it.... please someone explain it in details...
  18. Arshiful

    SOMEONE help DONNO THe aNSWER TO THIS PHYsics QUeStION

    thanks!! to both of u!!!!
  19. Arshiful

    SOMEONE help DONNO THe aNSWER TO THIS PHYsics QUeStION

    energy can be changed from one form to another solar energy is released from energy in the nuclei of atoms in the sun. some of this energy is converted in to wind energy on the earth. describe IN DETAILS the energy changes and processes that occur as the energy in the nuclei of atoms in the...
  20. Arshiful

    ZOHAIB

    THANK GOD I THOUGHT THIS CALC IS NOT ALLOWED AT LEAST WE CAN CHECK THE ANS IF THEY ARE RIGHT OR WRONG!!!!
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