In an experiment, a current only flows through a material if the wavelength of light hitting the material is less than 562 nm. What is the work function of the metal?
2.21 eV
2.53 eV
2.01 eV
2.31 eV
In an experiment, a current only flows through a material if the wavelength of light hitting...
In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 520 nm. A. What is the work function of this material? B. What stopping voltage is required if light of wavelength 410 nm is used?
Problem (8 points) For the Photoelectric Effect experiment shown, when ultraviolet light with a wavelength of 240 nm shines on a particular metal plate, electrons are emitted from plate 1, crossing the gap to plate 2 and causing a current to flow through the wire connecting the two plates. The battery voltage is gradually increased until the current in the ammeter drops to zero, at which point the battery voltage is 1.40 V plate 2 AV incident ◇e electrons Tammeter...
Constants In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 570 nm. What stopping voltage is required if light of wavelength 430 nm is used? Express your answer to three significant figures and include the appropriate units.
in a photoelectric-effect experiment, it is found out that no current flows unless the wavelength is less than 445nm.(a) what is the work function of this material?(b) find the maximum speed of the ejected electrons if the wavelength is changed to (i) 456nm (ii) 342nm
please answer both 7 and 8 because they are connected 7) In a particular Photoelectric effect experiment the "Work Function" is found to have a value of 2.31 eV. What is the cut-off wavelength for that material? 8) In (7), light with a wavelength of 450 nm strikes the metal, what is the kinetic energy (in eV) of the resulting electrons?
When a metal is illuminated by light, photoelectrons are observed provided that the wavelength of the light is less than 606 nm. What is the metal's work function? (c - 3.00 x 10 m/s, h = 6.626 x 10-34 J·s, 1 eV = 1.60 x 10-19)) 25 ev 2.2 eV 24ev 21ev
10) A photoelectric effect experiment is done using light of some wavelength 2. The photoelectrons are observed to have a maximum kinetic energy of 7.0 eV. If the experiment is repeated using light of twice that wavelength (22 =221), on the same metal, it is found that the maximum electron kinetic energy is 2 eV. What is the work function of the metal?
!) Light with a wavelength of (465 + A) nm is incident on a metal surface with a work function of (1.25 + (0.1)(B)) eV. Find the maximum kinetic energy of the emitted photoelectrons. Give your answer in eV and with 3 significant figures. 2) Consider electrons accelerated using a potential difference of (12.5 + A + B) kV before hitting a metal surface. Calculate the minimum wavelength of the emitted x-rays. Give your answer in pm and with 3...
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
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 %