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If we have an atom that is in an excited state and so is going to emit a photon, we cannot say when it will emit the photon. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly.
Richard P. Feynman
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"If we have an atom that is in an excited state and so is going to emit a photon, we cannot say when it will emit the photon. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly."
— Richard P. Feynman

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If we have an atom that is in an excited state and so is going to emit a photon, we cannot say…

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If we have an atom that is in an excited state and so is going to emit a photon, we cannot say when it will emit the photon. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly. — Richard P. Feynman

About Richard P. Feynman

Richard P. Feynman was a Physicist from United States (1918–1988).

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Frequently Asked Questions

Who said "If we have an atom that is in an excited state and so is going to emit a photon…"?
This quote is attributed to Richard P. Feynman, a Physicist from United States.
When did Richard P. Feynman live?
Richard P. Feynman lived from 1918 – 1988.