Recent content by madayag1

  1. M

    How to calculate the work function of a metal?

    book doesn't say what units is requested
  2. M

    How to calculate the work function of a metal?

    srry it should be W=( (6.63E-34J.s)(3.00E8m/s) / (3.50E2nm) ) - 1.9E-19J = -1.9E-19 still the wrong answer tho.
  3. M

    How to calculate the work function of a metal?

    HI I am doing this equation : 14. When a certain metal is illuminated at 3.50x10^2nm the maximum kinetic energy of the ejected electrons is 1.20 eV. Calculate the work function of the metal. I did this: E=Ek+W W=E+Ek W=hc/Lambda -Ek =(6.63E-34J.s)(3.00E8m/s)/3.50E2m)-1.20eV =-1.2 That...