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13 Dec 2019

1 In the hydrogen atom, the emitted photons relaxing to the first energy level are in which region in the electromagnetic spectrum?

A. ultraviolet B. infrared C. visible D. X-rays E. microwave F. radio waves G. gamma rays

2 In the photoelectric effect, above the threshhold frequency, the energy of the ejected electron is proportional to

A. the frequency of the incident light. B. the intensity of the incident light. C. the speed of the incident light.

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Irving Heathcote
Irving HeathcoteLv2
17 Dec 2019

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