Light of wavelength 400 nm is incident on a metal
surface. The stopping
potential for the resulting electrons is 0.91 V.
a) What is the work function of the metal?
b) Identify the metal. (Use the Table)
c) What is the cut-off frequency for this target?
Light of wavelength 400 nm is incident on a metal surface. The stopping potential for the...
When 289-nm photons are incident on the surface of a metal, electrons are ejected from it and the stopping potential is 2.69 V. Find the energy of incident photons: E,= (4.287 eV. Find the kinetic energy of ejected electrons: K= eV. Find the work function of the metal: p= 1.597 ✓ev. Find the wavelength of the least energetic photon that can induce the photo- electric effect in this metal 2 = 778 nm.
The following data gives stopping potential Vo versus wavelength for photoelectrons produced from a metal surface. (Be sure to include the correct units and use three significant figures.) Table 1 Vo (nm) (volts) 50 100 9.33 150 5.19 2003.15 2501.86 300 1.05 21.4 Use an analysis similar to that used in the inlab procedure to determine the work function (in ev) for this surface. (Use1 ev -1.602 x 10-19j, e- 1.602 x 10-19 c,2.998 x 108 m/s, and h ....
The following data gives stopping potential Vo versus wavelength for photoelectrons produced from a metal surface. (Be sure to include the correct units and use three significant figures.) Table 1 2 Vo (nm) (volts) 50 21.1 100 9.27 150 5.17 3.14 200 250 1.83 300 1.02 Use an analysis similar to that used in the inlab procedure to determine the work function in eV) for this surface. (Use 1 eV = 1.602 x 10-19), e = 1.602 x 10-19 C,...