94.31: Light of a single frequency falls on a photoelectric material but no ele ltlz u5o1-hfsesgajq+/g :+;ctrons are emitted. Electrons may be emitted if jzh oq+e-a5l: s/ul1+fgs;gtthe:

  97.36: A student performs the Photoelectrie+2c kcvz) enbm1 rz;4c Effect Experiment and obtains the data depzm 4k2v1rzce bn)ce+;icted 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 z o2:p2pjkq j-frequency f behaves as if it had a mass equal to:

  14.32: Planck’s constant is multiplied by tgywb 7y0(6wg the speed of light. The resulting value then is divided by three meters. This final value 6gt0gybwy7( whas the units of which one of the following quantities?

  10.48: Which of the following wavelengths (in n. g1w8kn2lo rpm) of electromagnetic radiation will produl2gwnor8 p.k 1ce 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 s( r,e lwk,5whmass $4.00\times10^{-26}kg$ 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 suqepx2i)h +x8qp q jk+k* v,d9nrface. It is known that the electrons ejected from the surface range8 p 2,qv)e kk9p+nihxqj q*+xd 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 potentiakc4qpy3g)zoj:67 t e zt9d(obx3 8iczl 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?