94.31: Light of a single frequency falls on a photoelectric material but no elecf wt9: vx;-b o(pibn0vtrons are emitted. Electrons may bt0x vvwpifn;9-(ob:be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obj*o l5est:wxtc yg g1o7o;+,btains the data de +bety7c,1jlogg*5:w s oo tx;picted in the accompanying 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 frequency f behaves a)tx lvw*qgp1 4s if it had a mass equal to:

  14.32: Planck’s constant is multiplied by the speed of light. The resultimhu tug /xve9:+b86nang value then is divided by three meters. This final vb9gh t:a8u ev /6x+umnalue has the units of which one of the following quantities?

  10.48: Which of the following wavelengths (in nm) of electrwy7rkj d bw0( +rd. mpry)k6-womagnetic radiation will produce photoelectrons of the least kinetic energy if the radiation is incident on a material with a work function of 4.80 eVkr- wjk br()6ywpd 0r+my7w.d ?

  12.45: A stationary atom of 0jv-ig)i bx+v7 v 3ownmass $4.00\times10^{-26}kg$ 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 metallic surfacezal+ 6v6uv.a w. It is known that the electrons ejected from the surfacew+.av av6u6 zl 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 experiment, a stopping poeo2(8ov 3ddrs cp.ia+tential 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?