The 488 nm laser is shine on a lithium metal whose work function is 2.9 eV will you be able to see any photoelectrons? if yes what is the kinetic energy of the electrons if no what wavelength of light should be used to see the photoelectrons
The 488 nm laser is shine on a lithium metal whose work function is 2.9 eV...
A lithium target is irradiated with a 248 nm wavelength laser. The work function of lithium is 2.9 eV. Find: (a) The minimum frequency of photons that would exhibit the photoelectric effect in lithium. (b) The maximum velocity (in meters per second) of photoelectrons observed. (c) Now the same laser is used on a platinum target (work function of 5.12 eV), instead of lithium. Which of the following statements is correct? Justify to get full credit. (i) Photoelectrons from platinum...
please show all work 4) A metal having a work function of 2.5 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm. For which one of the following ranges of the wavelength band in this white light are photoelectrons NOT produced? (h-6.626 x 10-34 J s, c 3.00 x 108 m/s. 1 eV- 1.60 x 10-19 J) Aner Answer oibn MAW od voa 5) A metal having a work function of...
The work function for silver is 4.73 eV. (a) Find the cutoff wavelength for silver. nm (b) What is the lowest frequency of light incident on silver that releases photoelectrons from its surface? Hz (c) If photons of energy 5.87 eV are incident on silver, what is the maximum kinetic energy of the ejected photoelectrons? eV
The work function for iron is 4.50 eV. (a) Find the cutoff wavelength for iron. nm (b) What is the lowest frequency of light incident on iron that releases photoelectrons from its surface? Hz (c) If photons of energy 6.27 eV are incident on iron, what is the maximum kinetic energy of the ejected photoelectrons? eV
When light with wavelength 740 nm shines on a particular sheet of metal, it ejects electrons that have a maximum kinetic energy of 0.4 eV . What is the maximum kinetic energy of ejected electrons if we shine light with wavelength 500 nm on the sheet of metal instead? ______ eV
0.10 eV photoelectrons are ejected from a piece of calcium whose work function is 2.71 eV when it is illuminated with a certain laser. What wavelength of light is the laser emitting? What region of the electromagnetic spectrum is this light is?
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 for iron is 4.50 ev. (a) Find the cutoff wavelength for iron. nm (b) What is the lowest frequency of light incident on iron that releases photoelectrons from its surface? Hz (c) If photons of energy 5.94 eV are incident on iron, what is the maximum kinetic energy of the ejected photoelectrons? ev Need Help? Read It
When light with wavelength 740 nm shines on a particular sheet of metal, it ejects electrons that have a maximum kinetic energy of 0.4 eV . What is the maximum kinetic energy of ejected electrons if we shine light with wavelength 380 nm on the sheet of metal instead?
When violet light of wavelength 430 nm illuminates a metal surface, the maximum kinetic energy of the photoelectrons is 2.45 eV. (a) What is the work function, (b) What is the maximum speed of photoelectrons when a light beam of wavelength 520 nm illuminates the metal surface? 8 %