Recent content by kizersi5

:!) :confused: My problem is that I am required to derive such formulae, which are: MEASUREMENT of the LASER wavelength. (1) 1 or lamda = 2* dm/m & (2) m=(n-1) ( 2*d/1)*(Dp/ Patm) dm= distance of the movable mirror moved toward a beam splitter. m= no. of fringes that cross a...

Thanx so much.

Question: Silicon at T=300k contains acceptor impurity atoms at a density of Na=7*10^15 cm^-3. Determine Ef - Ev. My solution: By using the formula Ef -Ev= KT ln(Nv/Na) fermi energy type I had trouble computing this formula due to not having the value of Nv. So, I would appreciate if...

Need help! i would like to know the formula for the force of gravity?

hello I would like to know the formula for force? :smile: