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10 November, 09:59

What did the results of photoelectric-effect experiments establish?

A) Electrons are emitted as soon as low-intensity, high-frequency light hits a metal surface.

B) Electrons are never emitted if low-intensity light waves strike a metal surface.

C) Electrons are emitted if low-intensity light has been incident on metal for a long time.

D) Electrons are emitted if high-intensity light has been incident on metal for a long time.

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  1. 10 November, 10:05
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    Electrons are emitted as soon as low-intensity, high-frequency light hits a metal surface.
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