Electromagnetic radiation is incident on a metallic surface. Electrons are emitted from the surface when the wavelength is 450 nm or less.
a) What is the work function of the metal?
b) What is the maximum kinetic energy of photo-electrons if the incident light has a wavelength of 400 nm?
c) What is the stopping voltage required to stop photo-electrons ejected by the plate when the incident light has a wavelength of 300 nm?
d)If the stopping voltage is 5 V, what is the wavelength of the incident light?
Electromagnetic radiation is incident on a metallic surface. Electrons are emitted from the surface when the...
Calculate the maximum wavelength of electromagnetic radiation that can eject electrons from the surface of metallic tungsten, which has a work function of 7.29x10-19 J. If the maximum velocity of the emitted photoelectrons are required to be 2.00x106 m/s, calculate the wavelength of the incident radiation
When 289-nm photons are incident on the surface of a metal, electrons are ejected from it and the stopping potential is 2.69 V. Find the energy of incident photons: E,= (4.287 eV. Find the kinetic energy of ejected electrons: K= eV. Find the work function of the metal: p= 1.597 ✓ev. Find the wavelength of the least energetic photon that can induce the photo- electric effect in this metal 2 = 778 nm.
When light with a wavelength of 216 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.35 × 10-19 J. Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface. in m/s with 3 sig figs please
2. When light with a wavelength of 223 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.30 × 10 − 19 J. Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface.
Light striking a metal surface causes electrons to be emitted from the metal via the photoelectric effect.In a particular experiment to study the photoelectric effect, the frequency of the incident light and the temperature of the metal are held constant. Assuming that the light incident on the metal surface causes electrons to be ejected from the metal, what happens if the intensity of the incident light is increased?Check all that apply.The work function of the metal decreases.The number of electrons...
A blue laser beam is incident on a metallic surface, causing electrons to be ejected from the metal. If the frequency of the laser beam is increased while the intensity of the beam is held fixed, a) the rate of ejected electrons will decrease and their maximum kinetic energy will increase. b) the rate of ejected electrons will remain the same but the maximum kinetic energy will increase. c) the rate of ejected electrons will increase and their maximum kinetic...
When electromagnetic radiation with a wavelength of 326.0 nm is directed at the surface of a certain metal, electrons are ejected from the surface with a de Broglie wavelength of 9.65 Å. Calculate the work function for the metal in kJ/mole of e ejected. 1 Å (angstrom) = 1x10 meters kJ/mol e Check
The maximum wavelength of electromagnetic radiation capable of removing an electron from the surface of a certain metal is 421.2 nm. Use this information to determine the work function for the metal in kJ per mole of electrons ejected.
When ultraviolet light with a wavelength of 280 nm is incident on a particular metal surface, electrons are emitted via the photoelectric effect. The maximum kinetic energy of these electrons is 1.44 eV. (a) What is the work function of the metal? eV (b) What is the threshold frequency for this particular metal? Hz
2. (3 points) When light with wavelength of 221 nm is incident on a certain metal surface, electrons are ejected with maximum kinetic energy of 3.28 x 1019). a) What is the binding energy (the work function)? Express your answer in ev. b) Find the wavelength of light necessary to double the maximum kinetic energy of the electrons ejected from the metal.