Problem 4: What is the maximum photoelectron speed if sodium of work function 2.75 eV is...
Sodium has a work function of 2.28 eV. If a sodium bar is illuminated with blue light (450 nm) - (a) find the max KE (in eV) of a single photoelectron (b) find the cutoff wavelength and color of a photoelectron. (hint: to find the cutoff wavelength, you should find the max wavelength of the photon.)
1. The work needed to remove an electron from the surface of sodium is 2.3 eV. Find the maximum wavelength of light that will cause photoelectrons to be emitted from sodium. What will be the speed of emitted clectrons if light with wavelength 300 nm used? What will be the speed of emitted electrons if light with 2-400 nm is used? low much energy is required to remove an electron from the basic state of hydrogen, thereby producing an ion...
A surface whose work function is 1.8 eV is illuminated by a light whose wavelength is 167 nm. What is the maximum velocity of a photoelectron emitted from the surface? The speed of light is 3 × 108 m/s and Planck’s constant is 6.63 × 10−34 J · s.
Barium has a work function of 2.48 eV. A) What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 335 nm ? (answer in eV) B) What is their speed? Please include appropriate units. Please show all work Thank you.
studying for my final, help 3) [5 pt) What is the maximum kinetic energy (in eV) of a photoelectron emitted from a surface whose work function is 5.0 eV when illuminated by a light whose wavelength is 200 nm? a. 1.9 eV b. 1.2 eV c. 3.1 eV d. 0,0 eV e. 6.2 eV
the work function of iron metal is 4.50 eV. what is the maximum speed of the photoelectrons ejected from iron, when light with a wavelength of 142 nm is shined on its surface?
bee fast 1. The work needed to remove an electron from the surface of sodium is 2.3 eV. Find the maximum wavelength of light that will cause photoelectrons to be emitted from sodium. What will be the speed of emitted electrons if light with wavelength 300 nm is used? 2. How much energy is required to remove an electron from the basic state of hydrogen, thereby producing an ion H'? 3. What is the de Broglie wavelength of a 2000-kg...
The work function of iron metal is 4.50 eV. What is the maximum speed of the photoelectrons ejected from iron, when light with a wavelength of 142 nm is shined on its surface? Group of answer choices
Sodium metal has a work function of 2.28 eV. (a) At what wavelength of incident light will electrons be ejected from the material? (b) If light of wavelength 450 nm is incident on the sodium, determine the maximum kinetic energy of the ejected electrons 13.4
The work function of iron metal is 4.50 eV. What is the maximum speed of the photoelectrons ejected from iron, when light with a wavelength of 142 nm is shined on its surface? 1.22E6 m/s 6.32E5 m/s 8.99E5 m/s 9.51E6 m/s 1.09E6 m/s