In which of the following situations is the photoelectric effect being demonstrated?
A.
The...
Physics, 18.02.2021 09:10 khalilwhite75
In which of the following situations is the photoelectric effect being demonstrated?
A.
The color of a substance is determined by the wavelength of electromagnetic radiation that is reflected off of its surface.
B.
A photon of light travels at the speed of light in a vacuum but moves slightly slower through a medium made of matter.
C.
An electron moves through a sea of electrons within a block of aluminum atoms when a voltage is applied to the metal.
D.
An electron within an atom absorbs energy when it is hit by a photon and jumps to a higher energy level within the atom.
Answers: 1
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The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 ร 1013 rad/s. the mass of a nickel atom is 9.75 ร 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 ร 10-34 j โข s, , 1 ev = 1.60 ร 10-19 j)
Answers: 2
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