94.31: Light of a single frequency falls on a photoelectric mats ;vbo te.,uv. hgjn8*0ywn m8erial but no electrons are emitted. Evotg8j;.b0nh .y vm wsne,u8*lectrons may be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obtains .jfybn3uies0 /ct;( c 8znzz 9the data depicted in the accompanjcz0.e nu3bn ;z8c9 (ftiz /syying 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 vmwy6cr;o8; h t+k: on4 iy:mrmass equal to:

  14.32: Planck’s constant is mul eddvb xtbrfjq15 g2t( u0tec/6;in:nlw2 8;utiplied by the speed of light. The resulting value then is divided by three meters. This final value has the units of which one of t0( bl 21cgr j;tun x;b6tfqi dtnu8e2 /ed5wv:he following quantities?

  10.48: Which of the following wavelengths (in nm) of e.ogdgaz5f-k51p9j oo+2, itxk (:hs5rou ef j lectromagnetic radiation will produ5jtgo r9i5z5g uoof .hjsp , feax(k2 :-1odk+ce 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 ato6z; ku8bnty4 mjz.q+qv j2pi4x3-thkm 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 shinek7z7z.,nnhzh w1/rw ss onto a metallic surface. It is known that the electron nzwsr hz/z,1k7hnw7.s 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+0q ej q+yds4i 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?