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Prashan_punk

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About Prashan_punk

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  1. does (x+h)log(x+h) = xlog(x+h) + hlog(x+h) ?
  2. Prashan_punk

    why's it?

    why's diffraction grating better than double slit experiment for finding wavelength of a wave
  3. thanks guys...but i have trouble understandin the expression for the magnetic field intensity i.e B = F/m where 'B' is magnetic field intensity, F is force experienced by The unit pole and 'm' is the strength of another magnet... just confused how this relation came
  4. does it mean the north magnetic pole of a magnet of +1 strength?
  5. the intensity of magnetic field at a point is defined as the force experienced by a unit north pole placed at that point . WHat does unit north pole mean ???
  6. why does spectrum of hydrogen have many lines though it has only one electron???
  7. when the image forms at infinity how can we proove M= D/F M= MAGNIFICATION D= LEAST DISTANCE OF DISTINCT VISION F= FOCAL LENGTH
  8. i have prob understandin the following proof......... IN THE CASE OF SIMPLE MICROSCOPE IF IMAGE FORMS IN INFINITY THEN HOW CAN WE PROOVE= MAGNIFICATION(m) = D/f where 'D' IS LEASE DISTANCE OF DISTINCT VISION AND F = FOCAL LENGTH
  9. sorry guys about some mistake ....but i am still confuse in this binomial expansion.....can u explain that part =>HOW IS C(n,2)x^2 = (n(n-1))/2!) OR C(n,3)x^3 = (n(n-1)(n-2))/(3!) of this equation....
  10. CAN ANY ONE PROVE THIS? ( n! ) /( r! (n-r)! ) = ( n(n-1) )/ 2!
  11. Can somebody describe BINOMIAL THEOREM in a effective way....ABout the its "general term", "middle term" ...........thanks to anyone who will describe it
  12. See The Fig.txt File Fig.txt
  13. THanks guys...for the help......i may post some other questions ....coz i need to get prepared for examx
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