94.31: Light of a single frequency falls on a photoeleceqxcjj74r0 m /tric material but no electrons are emitted. Electrons may be emi /cqxe4mjr0 7jtted if the:

  97.36: A student perfo*+5ydpxfig;3-e jro +jxj* b yrms the Photoelectric Effect Experiment and obtains the data depicted in the accompanying graph oy ;-oxj*+pef +j 5r*b dijx3ygf $E_{Km}$, the maximum kinetic energy of the photoelectrons in eV, versus f, the frequency of the photons in $10^{14}$ Hz. What is the approximate work function for this material?

  96.28: A photon with frequency f behavt*tdsvirg.bj/-smi * ) y ):waes as if it had a mass equal to:

  14.32: Planck’s constant is multiplied by the speeddp5dqqvv5(otwd;e(a2ixb3z i:(6m;t e f m 5b of light. The resulting value then is divided by three meters. This final value has the units of which one of the follo5ttqbw d;(qvd :zv3if 2(amb pxe(5m6 d;oie 5wing quantities?

  10.48: Which of the following wavelengths (in nm) of electromagnetic d0v,11jqk ab zradiation will produce photoelectrons of the least kinetic ener0z k,vbadq1j1gy if the radiation is incident on a material with a work function of 4.80 eV?

  12.45: A stationary si9bkkak5+95 1ic l fypei/t+atom of mass $4.00\times10^{-26}kg$ spontaneously emits a photon of energy 10.0 eV. Which one of the following choices best represents the speed, in units of m/s, of the atom after emitting the photon?

  16.45: Light of wavelength 250 nm shines onto )a ufnbto/grmdr6,/uy4) m1vf )8cz da metallic surface. It is known that the electrons ejec6)8 z1fr,rt/ )u4c obfm/mnuy)avd gd ted from the surface range in speed as 0 ≤ v ≤ 4.85× 105 m/s. What is the work function of the surface?

  06.46: In the photoelectric effe7 n a;y9tgnh9hct experiment, a stopping potential of V_{stop}$ is needed when light of frequency $f_0$ shines on the electron-emitting metal surface. If the metal surface on which the light shines is replaced with a new material that has half the work function, what is the new stopping potential ???????????????? , for light of frequency $f_0$ shining on it?