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Which of the following statements about the photoelectric effect is true?
Which of the following statements about the photoelectric effect is true?
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Practice Questions
1 question
Q1
Which of the following statements about the photoelectric effect is true?
Light intensity affects the energy of emitted electrons
Only light above a certain frequency can cause emission
Electrons are emitted regardless of light frequency
The number of emitted electrons is independent of light intensity
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The photoelectric effect shows that only light above a certain frequency can cause the emission of electrons, regardless of intensity.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following statements about the photoelectric effect is true?
Solution:
The photoelectric effect shows that only light above a certain frequency can cause the emission of electrons, regardless of intensity.
Steps: 4
Show Steps
Step 1: Understand what the photoelectric effect is. It is a phenomenon where light can cause electrons to be emitted from a material.
Step 2: Learn that not all light can cause this effect. Only light with a frequency above a certain threshold can do so.
Step 3: Recognize that the intensity of the light (how bright it is) does not matter if the frequency is below this threshold.
Step 4: Conclude that the statement about the photoelectric effect being dependent on frequency, not intensity, is true.
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