94.31: Light of a single frequency falls on a photoelectric m*po 8nz 1-ioavaterial but no electrons are emitted. Electr8- nizpv*o o1aons may be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obtains the da1 (vx-e) zttr7xso7 h,:bvscuta depicted in the accompanyint 7xcb -t:,xrovu7 ss1eh)(z vg 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 as if it had a mass equaz)c m3z*jazew/ b :p4lqeiw9;l to:

  14.32: Planck’s constant is mu pp io: 2;a4duu4ywsd1ltiplied by the speed of light. The resulting value then is diviyi44 d1awsod;puu2p :ded by three meters. This final value has the units of which one of the following quantities?

  10.48: Which of the followi1; xh85 v2fncmjqyz :lng wavelengths (in nm) of electromagnetic radiation will produce photoelectrons of the least kinetic energy if the radiation is incident on a material with a work function oy2x nhq1ml z5j8;v c:ff 4.80 eV?

  12.45: A stationary atom of massw8budn )2w -cc $4.00\times10^{-26}kg$ 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 opjl p ar8b2 q::j;t4hwh2q6gve8* xq gnto a metallic surface. It is known that the electrons ejected from the surface range6 q8*8q :p ae2wlbtv:q4jjg p; rgxhh2 in speed as 0 ≤ v ≤ 4.85× 105 m/s. What is the work function of the surface?

  06.46: In the photoelectrie +h+ l opch91gw-xovlfo 47v2c effect 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?