94.31: Light of a single frequency falls on a photoelectric materirvv bcxs4ysnm t:v 4470)w0cli -x; p o5avwa/al but no electrons are emitted. Electrons may04;cwp av iw)v5 -avxoms7/ nc04yx 4r:vblts be emitted if the:

  97.36: A student performs the Photoelectric Effect Experiment yeg+08vi ip1wgahm0x0zy zd f5mxgc+*-bt (7 and obtains the data depicted in the accompany xc fg71+(ztg00ieva*z dm +m58 bhw p0yi-xgying 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 frtt n)69ai2q02 j/eamyqg ny0aequency f behaves as if it had a mass equal to:

  14.32: Planck’s constant is multiplied by the +flv k6bzmt;s wc)c1,5 p tl6sspeed of light. The resulting value then is divided by three meters. This final value has the units o)t+kv6tbsms6 llpc 15 ,wfc; zf which one of the following quantities?

  10.48: Which of the following wavelengths (in nm) of electromagnetic radiatiok /) t)1*qiq9h gfhuxm0j;cw zn will produce photoutfi9 w c;)/0xhhm j )k*z1qgqelectrons 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 atom of mavt8 as-3hk0 z4qh(dln olp-/xss $4.00\times10^{-26}kg$ 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 surface. I*20- 6c5 jwiyglw mxfjt is known that the electrons ejected from the surface range in speed as 0 ≤ v ≤ 4.85× 105 m/s. What is the work fx 0l2wjgjmwc fy*i-65 unction of the surface?

  06.46: In the photoelectric effect expe z2aov18 hb3lrriment, 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?