PHYS 165 MODULE 10 EXAM QUESTIONS AND
ANSWERS 2026 COMPREHENSIVE REVIEW
GUIDE
◉ what was Millikan able to measure for the first time with his oil
drop apparatus?
a.The mass of an electron
b.the charge of an electron
c.the atomic spectrum of hydrogen
d.the number of electrons on an oil drop. Answer: b.the charge of an
electron
◉ what was Planck's assumption about a blackbody?
a.only certain frequencies of radiation were emitted from the
blackbody
b.light acted like an electromagnetic wave
c.the energy of the resonators of the blackbody was quantized
d.there is no relationship between the frequency of the radiation and
its energy.. Answer: c.the energy of the resonators of the blackbody
was quantized
◉ Which of the following statements is FALSE about the
experimental observations of blackbody radiation?
, a. There exists a peak wavelength with the largest amount of
intensity.
b. The intensity of the wavelengths lessens the further away from
the peak wavelength you are.
c. The hotter the blackbody, the less the peak wavelength
d. There is no relationship between the temperature of the
blackbody and its peak frequency.. Answer: d. There is no
relationship between the temperature of the blackbody and its peak
frequency.
◉ Under the right circumstances, in the photoelectric effect, when
light shines upon a metal, what happens?
a.Electrons are emitted
b.Protons are emitted
c.Photons are emitted
d.Quarks are emitted. Answer: Electrons are emitted
◉ During the photoelectric effect, light is acting like a(n):
a. electromagnetic wave
b. particle
c. both a wave and a particle
d. neither a wave nor a particle. Answer: b. particle
ANSWERS 2026 COMPREHENSIVE REVIEW
GUIDE
◉ what was Millikan able to measure for the first time with his oil
drop apparatus?
a.The mass of an electron
b.the charge of an electron
c.the atomic spectrum of hydrogen
d.the number of electrons on an oil drop. Answer: b.the charge of an
electron
◉ what was Planck's assumption about a blackbody?
a.only certain frequencies of radiation were emitted from the
blackbody
b.light acted like an electromagnetic wave
c.the energy of the resonators of the blackbody was quantized
d.there is no relationship between the frequency of the radiation and
its energy.. Answer: c.the energy of the resonators of the blackbody
was quantized
◉ Which of the following statements is FALSE about the
experimental observations of blackbody radiation?
, a. There exists a peak wavelength with the largest amount of
intensity.
b. The intensity of the wavelengths lessens the further away from
the peak wavelength you are.
c. The hotter the blackbody, the less the peak wavelength
d. There is no relationship between the temperature of the
blackbody and its peak frequency.. Answer: d. There is no
relationship between the temperature of the blackbody and its peak
frequency.
◉ Under the right circumstances, in the photoelectric effect, when
light shines upon a metal, what happens?
a.Electrons are emitted
b.Protons are emitted
c.Photons are emitted
d.Quarks are emitted. Answer: Electrons are emitted
◉ During the photoelectric effect, light is acting like a(n):
a. electromagnetic wave
b. particle
c. both a wave and a particle
d. neither a wave nor a particle. Answer: b. particle
