94.31: Light of a single frequen8/ 7 l1ks- yojpt+cv +yirxn4 uxy-se1cy falls on a photoelectric material but no electrons are emi-epsuk l/i-c4 x trv8 x+j1+yyy17 onstted. Electrons may be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obtains the d9x17*6f)i. pghzv ahorag5 uwata d)9vw gh5hg6 a17 rf*a.z xuipoepicted 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 withu4acisjy 7.+h frequency f behaves as if it had a mass equal to:

  14.32: Planck’s constant is mui3rzsdt *+w5eltiplied by the speed of light. The resulting value then is divided by etr+5dw*i3 zsthree meters. This final value has the units of which one of the following quantities?

  10.48: Which of the followi 4e 1rqdj+pg7sqqk61ang wavelengths (in nm) of electromagnetic radiation will produce photoelectrons of the least kinetic energy if the rada4+s j d1eqg61k 7qqrpiation is incident on a material with a work function of 4.80 eV?

  12.45: A stationary auuu 3panouia i+;8 rp)4d7b+ctom of 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 a metallic 2vi(g eawk+(qs6ab(f surface. It is known that the electron(gk e(ws q ib(a+vfa26s 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 experimenmxv( sno8fi +w58z:trt, 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?