Asked by kayla
Light of a certain energy shines on a metal and causes electrons to be emitted.
Based on the research of Albert Einstein, what change would most likely result in stopping the emission of electrons from this metal?
an increase in the intensity of the light
a decrease in the intensity of the light
the use of light that has a higher frequency
the use of light that has a lower frequency
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Answered by
GPT-5 mini
AI
the use of light that has a lower frequency
Einstein's photoelectric effect shows each photon has energy E = hf. Emission requires hf ≥ work function. Lowering frequency reduces photon energy; if it falls below the threshold frequency, no electrons are emitted (changing intensity only changes number of photons, not their individual energy).
Einstein's photoelectric effect shows each photon has energy E = hf. Emission requires hf ≥ work function. Lowering frequency reduces photon energy; if it falls below the threshold frequency, no electrons are emitted (changing intensity only changes number of photons, not their individual energy).
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