94.31: Light of a single frequency falls on a photoelectric mate/ 6pn 3bmp.aberial but no electrons are emitted. mb pean ./6p3bElectrons may be emitted if the:

  97.36: A student performss8jwjmwlq l w bed80n2s6m1)/ the Photoelectric Effect Experiment and obtains the data depicted in the accompanyin mls8w0wmwn)8l/dj qs1b2 j6eg 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 behatb4mu+4h ies (ves as if it had a mass equal to:

  14.32: Planck’s constant is multiplied by the speed of li x(1 7l 5pv 7ci+foiun.ku*5h tu:llpqght. The resulting value then is divided by three meters. This final value has the unit*.7(p:f 7 n5xil lu vtl+uhcui 5o1kqps of which one of the following quantities?

  10.48: Which of the following wavelengths (in jyq,eylr *wigyd+s3wb+syqd+6x 0 /-nm) of electromagnetic radiation wiley d3ww xsq/jgqi r+yb+y*0,6-l y d+sl produce photoelectrons of the least kinetic energy if the radiation is incident on a material with a work function of 4.80 eV?

  12.45: A stationary atom of mapuu)utu+ qr 8)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 wavelength 250 nm shine ,k+onjj.0fgd-d7 bvxmm5 /n ms onto a metallic surface. It is known that the .7g/0j5 n vmok+bmd- n jf,mxdelectrons ejected 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 effect experiment, a stopping potential of Vncu d)5c9t0lxh q*4 (as ev6jm_{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?