94.31: Light of a single frequency falls on a photoelectric w 68oixpnioz/ h+/ v+wj.pua 8material but no electrons are emitted. Electrons may be eo j/ 6z+wu8ix8. w avp+nohp/imitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obt y0 ngl .,tvnb0j,kkbcv+f rotc:s./:ains the data depicted in the accomk ,tylb00b,+s::o/rkn .tncg.vf jc vpanying 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 a7y1u4oz i ipmjnwau;i28dp)4b 7nx5 is if it had a mass equal to:

  14.32: Planck’s constant is multiplied by the speed of lighs ,hc;la 36xehly,j t/91w gpit. The resulting value then is dividei, ly/3 gtw 6 9;,e1phjhxscald by three meters. This final value has the units of which one of the following quantities?

  10.48: Which of the following wavelengths ( 3nhdb)1s5b) kqjg )xiin nm) of electromagnetic radiation will produce photoelectrons of the least kinetic energy if the radiation i dsibgxj5qb)1nk) h)3s incident on a material with a work function of 4.80 eV?

  12.45: A stationary 0/tafo xfr6o 3x:2 afgmp ;,xaatom 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 shi yk ;+e/ubro*z3 vu72c)z trpines onto a metallic surface. It is known that the electrons ejected from the surface range in speed as 0 ≤ v ≤ 4.85× 105 m/s3+2*cz ov7ztrrk)bu/i pe yu;. What is the work function of the surface?

  06.46: In the photoelectric effect experiment, a stopping2 blxu5xmgju3w 0,hg; ; kgq,g 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?