Recent content by kizersi5

  1. K

    Discover How to Measure Laser Wavelength with Modern Physics - HELP 911

    :!) :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...
  2. K

    Troubleshooting Semiconductor Problems: Calculating Ef - Ev at T=300K

    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...
  3. K

    Force Formula: Find Out How to Calculate Force

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

    Force Formula: Find Out How to Calculate Force

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