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MMLU-Pro / 9927 / In an experiment designed to study the photoelectric effect, it is observed that…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

In an experiment designed to study the photoelectric effect, it is observed that low-intensity visible light of wavelength 550 nm produced no photoelectrons. Which of the following best describes what would occur if the intensity of this light were increased dramatically?

category

physics

options

  1. The metal would start to heat up due to increased light intensity.
  2. The light would start producing photoelectrons with a kinetic energy equal to the energy of the incident photons plus the work function of the metal.
  3. The light would change color due to increased intensity.
  4. The wavelength of the light would decrease due to increased intensity.
  5. After several seconds, necessary for the electrons to absorb sufficient energy from the incident light, photoelectrons would be produced with a kinetic energy equal to the energy of the incident photons minus the work function of the metal.
  6. Nothing would happen.
  7. Almost immediately, photoelectrons would be produced with a kinetic energy equal to the energy of the incident photons.
  8. Photoelectrons would be produced with a kinetic energy equal to twice the energy of the incident photons.
  9. Almost immediately, photoelectrons would be produced with a kinetic energy equal to the energy of the incident photons minus the work function of the metal.
  10. The light would start producing photoelectrons with a kinetic energy less than the energy of the incident photons minus the work function of the metal.

src

ori_mmlu-high_school_physics

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Source and history

upstream_id / Original problem ID
9927
task_id
526d8183-9c5b-5c43-8a82-5d3561068883
task_key
default--test--9927
task_revision_id
1
config / split
default / test

Official source

initial import