94.31: Light of a single frequency falls on a pho aq1nls9 ub, eqey5i,.toelectric material but no electrons are emitted. Electrons may be ,u e. lnyeq5abi1s9,q emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment and i ij06 tia8g0r4q*ytqobtains the data depi *0ja 06t8 qiiyriqt4gcted 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 equaf 7 vlbh1xc9tlfxwm,j)b6 e2ec:i 7csc y 4;e+l to:

  14.32: Planck’s constant is multiplied by theb:sb gk)7qfu * speed of light. The resulting value then is divided by three meters. This final gb)ksbq7:u*fvalue has the units of which one of the following quantities?

  10.48: Which of the following wavelengths (in nm) of electromagnetic radiation +s8tpnkjiz)s k /j w1s))7i( h( tkthcwill produce photoelectrons of the ltcjt8+ kj)((h 1iktwisn))ksp 7szh/east kinetic energy if the radiation is incident on a material with a work function of 4.80 eV?

  12.45: A stationary atom of)rfnhs /)6p lj 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 grq rmm4z8pl9p .b2 l)surface. It is known that the electrons ejected from the surface range in speed as 0 ≤ v ≤ )9plmzr. mq pr82b4gl4.85× 105 m/s. What is the work function of the surface?

  06.46: In the photoelectric effect experiment, a stoppte*71,s0apnnjkl;qwoi l uw z3px3cmg *(/e *ing 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?