94.31: Light of a single frequdz:sxoo1:gm*j(q7w - .p c83i axxwxgency falls on a photoelectric material but no electrons are emitpx1mg3icz 7(so*da:go .wxqx :-8 jw xted. Electrons may be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obtas-4u :kyww 5 c5h-rcrwins the data depicted in the accompanyuhscy -cw-45 r:kr5 wwing graph 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 fr j5jx4 0,f 5/nwd1gbcc p1uigfequency f behaves as if it had a mass equal to:

  14.32: Planck’s conscq 7 (8qkvm *6nvctj0ak.gx5 htant is multiplied by the speed of light. The resulting value then is divided by three v6*g7(5 mqtvqkj.c8xa 0hknc meters. This final value has the units of which one of the following quantities?

  10.48: Which of the following wavelengths (in nm) /)k k )egq6x-s2q)v o-oelczn6:fra fof electromagnetic radiation will produce photoelectrons of the least kinetic energ 66-xqo2 nqceo) e g)f)-rkfl/z:ask vy if the radiation is incident on a material with a work function of 4.80 eV?

  12.45: A stationary atom ozkifk9kl. 2 ,g;5yqslf 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 skma vtpao8i: y7gzvy(842yjy366 ge a metallic surface. It is known that the electrons ejected from the surface range in speed asey7yt sz 3jv8: i v6ypgo (mag8a46k2y 0 ≤ v ≤ 4.85× 105 m/s. What is the work function of the surface?

  06.46: In the photoelectric effect experp4 yx-n -3xtjn27lnamiment, 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?