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A. Photons of energy 44.6 eV are incident on a metal surface with a work function...

A. Photons of energy 44.6 eV are incident on a metal surface with a work function of 2.13 eV. What minimum potential (in volts) do you need to put on the metal to stop photoelectrons from escaping form the metal?

B. Specifying the direction of the electric field of the EM wave is called ... Select one:

a. polarization

b. refraction

c. reflection

d. dispersion

C. Ultraviolet rays are intermediate in frequency between ... Select one:

a. Radio waves and infrared

b. Visible region and microwaves

c. Visible region and x rays

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Answer #1

Einsteins ph右eleckie eguoHonb Masinmiun kinetic ener?i 치тим enevat and the iOovk vno he Heye, tte. PYbduct 아 plamkâ 0m.tan-

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