# Prashan_punk

Members

24

1. ## log rule...

does (x+h)log(x+h) = xlog(x+h) + hlog(x+h) ?
2. ## why's it?

why's diffraction grating better than double slit experiment for finding wavelength of a wave
3. ## unit north pole??

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. ## unit north pole??

does it mean the north magnetic pole of a magnet of +1 strength?
5. ## unit north pole??

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. ## hydrogen spectrum question

why does spectrum of hydrogen have many lines though it has only one electron???

8. ## help with optics.....

when the image forms at infinity how can we proove M= D/F M= MAGNIFICATION D= LEAST DISTANCE OF DISTINCT VISION F= FOCAL LENGTH
9. ## help with optics.....

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
10. ## Help me in this simple prob..

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....
11. ## Help me in this simple prob..

CAN ANY ONE PROVE THIS? ( n! ) /( r! (n-r)! ) = ( n(n-1) )/ 2!
12. ## if somebody can help in BINOMIAL THEOREM

thanks for helping
13. ## if somebody can help in BINOMIAL THEOREM

Can somebody describe BINOMIAL THEOREM in a effective way....ABout the its "general term", "middle term" ...........thanks to anyone who will describe it
14. ## Ion electron Method

See The Fig.txt File Fig.txt
15. ## Math questions

THanks guys...for the help......i may post some other questions ....coz i need to get prepared for examx
16. ## Math questions

Find the derivatives of : 1. log x/10 2. e^(ax+b) 3. e^(x/3)
17. ## Phosphorus rockets

If i would have the other fuels i.e. Gunpowder....I would not have searched for phosphorus
18. ## Phosphorus rockets

In some of the websites I found some of the rockets that were made of phosphorus.....Can i make rockets using phosphorus too??
19. ## The Official JOKES SECTION :)

A man having HIV disease....Came in the group of 1245454 people He had a syringe filled with his warm blood..... He tried to inject the blood to other people but he could not... He tried and tried and finally he transferred his blood in a doctor The man laughed and said"Ha ha, now you will die of AIDS" Doctor also laughed The man said why are u laughing... Doctor said---"B'COZ I'M WEARING A CONDUM!!!"
20. ## Levitation

How can i levitate a magnet?
21. ## Rockets

..... Thanx guys but I want to try it...in the battery cover... Would it explode if it fails..............
22. ## .3gp to .mpg

You should try mobile phone tools
23. ## Graphics for my Laptop

I suggest you not have a laptop to play computer games You should have at least:- 2 gig ram or 1 gig 3.0 ghz processor a good graphics card like:- Radeon 9800 pro Radeon x1900 is the latest and finest nvidia 6800 ultra The latest nvidia 7800 gtx will be better
24. ## Rockets

Hello everyone I am new in here I have some problems in making the solid fueled small rockets I cant find the proper chemical like KNO3......Can i use the burning material of a matchstick??? And whatelse can i do to make it????
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