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?
kinetic energy of the emitted electrons = 0.10eV
Work function of calcium Wo=2.71eV
using the equation of conservation of energy,
The light is from the visible region of the electromagnetic spectrum.
0.10 eV photoelectrons are ejected from a piece of calcium whose work function is 2.71 eV...
(1) Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 405 nm photons. Once ejected, how long (in s) does it take these electrons to travel 2.75 cm to a detection device? (2) What is the wavelength (in m) of an electron moving at 3.20% of the speed of light?
The maximum kinetic energy of electrons ejected from barium (whose work function is 2.50 eV) when it is illuminated by light of wavelength 350 nm is A. 0.20 eV. B. 0.41 eV. C. 0.63 eV. D. 0.95 eV. E. 1.05 eV.
Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 450 nm photons. Once ejected, how long (in s) does it take these electrons to travel 2.60 cm to a detection device?
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The maximum speed of photoelectrons ejected from the surface of a metal is 4.07E5 m/s, when light with a wavelength of 185 nm is shined on the surface. What is the work function of the metal? 2.40 eV 5.17 eV 6.24 eV 4.70 eV 1.42 eV
The maximum speed of photoelectrons ejected from the surface of a metal is 4.07E5 m/s, when light with a wavelength of 185 nm is shined on the surface. What is the work function of the metal? 2.40 eV 05.17 eV O 6.24 eV 0 4.70 eV O 1.42 eV
The maximum speed of photoelectrons ejected from the surface of a metal is 4.07E5 m/s, when light with a wavelength of 185 nm is shined on the surface. What is the work function of the metal? Group of answer choices 2.40 eV 5.17 eV 6.24 eV 4.70 eV 1.42 eV
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
Question 17 5 pts The maximum speed of photoelectrons ejected from the surface of a metal is 4.07E5 m/s, when light with a wavelength of 185 nm is shined on the surface. What is the work function of the metal? 2.40 eV 5.17 eV 6.24 eV 4.70 eV 1.42 eV
The maximum speed of photoelectrons ejected from the surface of a metal is 4.07E5 m/s, when light with a wavelength of 185 nm is shined on the surface. What is the work function of the metal? 0 2.40 ev 0 5.17 eV O 6.24 eV 0 4.70 eV O 1.42 eV Ei