studying for my final, help 18) (5 pts) If a rubidium surface is irradiated with blue...
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
A silicon (Φ = 7.77 × 10-19 J) surface is irradiated with UV radiation with a wavelength of 225 nm. Assume an electron was a mass of 9.11 x 10-31 kg. a) What is the frequency (s^-1) of the incident radiation? b) What is the kinetic energy (J) of the emitted electrons? c) What is the speed (m/s) of the emitted electrons? d) What is the wavelength (nm) of the emitted electrons?
studying for my final, help velengths of light, all able to eject photoelectrons, shine ond is independent of the intensity of the 1) (1 pt] In an experiment different wavelengths of light, all able to eject pm on a freshly on a freshly prepared (oxide-free) zinc surface. Which statement is truer a. The number of photoelectrons emitted per second is independent of me light for all the different wavelengths b. The number of photoelectrons emitted per second is directly proportional...
A metal surface is illuminated by light with a wavelength of 350 nm . The maximum kinetic energy of the emitted electrons is found to be 1.90 eV . What is the maximum electron kinetic energy if the same metal is illuminated by light with a wavelength of 250 nm ?
studying for my final, help 19) (5 pts) A photon with an energy of E, = 2.090 GeV creates a proton-antiproton pair in which the proton has a kinetic energy of 95.0 MeV. What is the kinetic energy of the antiproton? (m,c2 = 938.3 Mev) a. 50.8 MeV b. 84.2 MeV c. 118.4 MeV d. 60.2 eV e. 231.4 MeV
studying for my final, help 19) [5 pts) A photon with an energy of E, = 2.090 GeV creates a proton-antiproton pair in which the proton has a kinetic energy of 95.0 MeV. What is the kinetic energy of the antiproton? (m,c2 = 938.3 MeV a. 50.8 MeV b. 84.2 MeV c. 118.4 MeV d. 60.2 eV e. 231.4 MeV
1. Find the kinetic energy of a photoelectron emitted from a rubidium (Rb) surface if the wavelength of the incident light is 400 nm (1 nm = 1·10^−9 m), and the binding (or threshold) energy of an electron is 3.6·10^−19J. (A) 5.0·10−19 J (B) 3.6·10−19J (C) 1.4·10−19 J (D) λthreshold > 400 nm, no emission of photoelectrons (E) λthreshold < 400 nm, no emission of photoelectrons Please show how you got the problem
When UV light of wavelength 285 nm falls on a metal surface, themaximum kinetic energy of emitted electrons is 1.40 eV. What is thework function of the metal? eV
When light of wavelength 120 nm falls on a gold surface, electrons having a maximum kinetic energy of 5.25 eV are emitted. Find values for the following.
When UV light of wavelength 288 nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.66 eV What is the work function of the metal?