94.31: Light of a single frequency falls on a photoelectric matoscgl kt3y51 myi *+,x9z 5tcierial but no electrons are emitted. Elgi 3m, csyx c1 z559+tytlko*iectrons may be emitted if the:

  97.36: A student performs the Photoekrngz(b:9(ekf+ jf2z :r k-xslectric Effect Experiment and obtains the data depicted in the accompanying grax k(re+ kb:r9k2sz(gn:fj-z fph of $E_{Km}$, 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 fg e/fok 5;z4u lf(dr5lrequency f behaves as if it had a mass equal to:

  14.32: Planck’s consbu aa*;d2l7f mtant is multiplied by the speed of light. The resulting value then is divided by three meters. This final value has the unflm a*u2; 7adbits of which one of the following quantities?

  10.48: Which of the following wavelengths (in nm) of electroma )lr38arh e1tjgnetic radiation will produce photoelectrons of the least kinetic energy if the radiation is incider1eah)j83tr l nt on a material with a work function of 4.80 eV?

  12.45: A stationary atom of maji) ne4mw pj).ss $4.00\times10^{-26}kg$ 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 wavelengt*h as :92dze mguxm9q8 a1ad5yh 250 nm shines onto a metallic surface. It is known that the electrons ejected fryu d*qm 2x de15a8:zgahs 9m9aom 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 effect experimejy d k1(5vsp1kpzi9d/ 4o3mtmnt, 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?