When monochromatic light is incident on the surface of a metal, electrons are emitted by the photoelectric effect. If other conditions are unchanged, what will increase the maximum... When monochromatic light is incident on the surface of a metal, electrons are emitted by the photoelectric effect. If other conditions are unchanged, what will increase the maximum kinetic energy of the electrons?
Understand the Problem
The question is about the photoelectric effect and asks how to increase the maximum kinetic energy of emitted electrons when monochromatic light shines on a metal surface. The photoelectric effect describes how electrons are emitted from a material when light shines on it. The maximum kinetic energy is related to the energy of the incident light and the work function of the metal.
Answer
Increasing the frequency of the incident light.
Increasing the frequency of the incident light will increase the maximum kinetic energy of the emitted electrons, according to the photoelectric effect.
Answer for screen readers
Increasing the frequency of the incident light will increase the maximum kinetic energy of the emitted electrons, according to the photoelectric effect.
More Information
The photoelectric effect describes how electrons are emitted from a material when light shines on it. The kinetic energy of these electrons increases with the frequency of the light.
Tips
A common mistake is to think that increasing the intensity of light will increase the kinetic energy. Intensity only increases the number of electrons emitted, not their kinetic energy.
Sources
- Photoelectric effect (article) | Khan Academy - khanacademy.org
- When monochromatic light is incident on a metallic ... - YouTube - youtube.com
- [PDF] Physics - Revision Science - revisionscience.com
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