Month: September 2010

Science

Best Engineering College

Can anyone guide me about the best engineering college of India, after IITs? Please also tell which engineering branch is best?

Science

why he ne atoms in laser

from figure below you find various materials used in lasers however in visible region it is due fact (may be confirmed  from a person of

Physics

laser

IN He Ne laser active centres are Ne atoms but Ne gas is inert gas so is it not difficult to excite Ne atoms ? why noble