J). is incident upon a sheet of metal of unknown type. Electrons are ejected from this metal, with a maximum kinetic energy of 10 eV (1 eV=1.6x10^-1 a) What is the energy of an individual photon striking the surface of the metal? b) What is the work function of the metal? c) If the wavelength of light were shortened to 4 nm, what would the maximum kinetic energy of the emitted electrons be? Please write your answers in the space below and email your work. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mar)

A certain X-ray machine generates X-rays from a beam of electrons accelerated from zero to 99.9999999 per cent the speed of light in a long linear accelerator of length 3.2 km. The electrons are generated in pulses of duration ∆t = 100 fs. The generated x-rays from the target are also short pulses (λ = 0.15 nm). Determine the energy of a single x-ray photon in the beam. a.) 8.27 eV              b.) 8.27 J                           c.) 8.27 keV                     d.) none of these.

Part A What is the energy range (in joules) of photons of wavelength 390 nm to 740 nm ? Express your answers using two significant figures separated by a comma. ? Emin. Emax = J Submit Request Answer Part B What is the energy range (in eV) of photons of wavelength 390 nm to 740 nm ? Express your answers using two significant figures separated by a comma. ? Emin. Emax = eV Submit Request Answer Provide Feedback

The work function of cesium is 2.1 eV. ▾ Part A Determine the lowest frequency photon that can eject an electron from cesium. Express your answer with the appropriate units. Templates Symbols undo' rego Teset keyboard shortcuts Help Value Units Request Answer Part B Determine the maximum possible kinetic energy in electron volts of a photoelectron ejected from the metal that absorbs a 320-nm photon. Express your answer in electronvolts. Templates Symbols undo' redo Teset keyboard shortcuts Help Kmax= eV f= Submit

Which has the larger de Broglie wavelength, a 0.50 kg ball moving with a speed of 25 m/s or an electron traveling at 2/3 the speed of light?  The mass of an electron is 9.11 x 10-31 kg and the speed of light is 3 x 108 m/s.   Select one: a. It could be either, depending on the circumstances. b. The ball c. The electron