The photoelectric effect happens when light waves are absorbed by a surface and electrons are emitted. Scientists once thought that the energy of those electrons was proportional to the intensity of the light. However, experiments showed that the maximum energy of the electrons did not depend on the intensity of the light. Instead, the energy increased as the frequency of the light increased. Below a certain frequency, the effect did not occur.
What can be inferred (but not directly stated) from the paragraph?
(1 point)
• The absorption of light causes electrons to gain energy.
• Energy increases as frequency of light increases.
• The maximum energy of electrons does not depend on light intensity.
• Electrons are emitted when light hits a surface.
1 answer
From the paragraph, the following inference can be drawn:
This inference can be made based on the phrase that "the maximum energy of the electrons did not depend on the intensity of the light."
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