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Einstiens coefficients are usually to explain the principle of LASERS i.e. Light emission by stimulated emission of radiation.

Really a wonderful article sir

Quantisation meansin steps and classical physics means everything is in continuum (continuous)

Fantastic sir,
Wud just luv to read it again n again
thank you sir.

but the result is for maximum kenetic energy

wat about the average kinetic energy
any idea please ?

because of centripetal force

Hi amaron, wonderful attempt, but i would like to have further explanation of the problem for better understanding.

Sir can u please explain the shape of flame in candle. Why is it so?

This is no in IIT-JEE syllabus.

't' for tum sab ke sab paagal ho

But edison sir which distribution does radioactive decay statistics follow and what is secular equilibrium in radioactivity.

Hmmm it seems sravan is saluting himself by using some other user name. Don't spoil the a game yaar.

If u r really intereested in kowing the answere then throw one by one.

Hope u understand.

I am interested in lattice structure of Al2O3. Whether it is octahedral, rohobohedral or some interpenetrating lattice. Please reply or quote some reference

Please explain me the structure of Al₂O₃ along with its other physical properties.

Water level is maintained in cylindrical vessel upto a fixed height 'H'. The vessel is kept on a horizontal plane. At what height above the bottom should a hole be made in the vessel so that the water stream coming out of the hole strikes the horizontal plane at the greatest distance from the vessel.