94.31: Light of a single fd a zpbahk * o3.lzn0cbw gc-)p/y;o3.requency falls on a photoelectric material but no electrons are emit /) .ba0hopp3ak dw3-z* gy;colcnb z.ted. Electrons may be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and obfj)/k6;c cb zytains the data dep6;b fczj/y)c kicted 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 frequency f behaves as if it had a mass equal to*:grkmjyh t55(:u,wd bh)p sh:

  14.32: Planck’s constant is multiplied by the speed of light. The rjhqf9f a 3:v12yafq1wesulting value then is divided by three meters. This final value has the units of whic1 jafqqa2 w1f9 fvy3:hh one of the following quantities?

  10.48: Which of the following wavelengths (in nm) of electromag f w,fjnlw u3m3l.;j2as3ewb* y*xh0unetic radiation will produce photoelectrons of the least kinetic energy if the radiation is incident on a material with a work fuw*shal3mb .f 2njlj;wy fex3 3uw,*0unction of 4.80 eV?

  12.45: A stationary atom of 5qr8gh p6.cpnm3;zo g 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/a(w gljw nckm1ti2 .8 surface. It is known that the electrons ejectg82w/ a1kwtc n.li(jmed 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 stoppiwjz*taj +dk 23p5)sm jng 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?