Match the letters below with the correct choice on the right…
Match the letters below with the correct choice on the right. Selections on the right may be used once, more than once, or not at all. In the photoelectric effect, ___A___ are emitted from a metal surface when a light beam is directed on it. To explain this effect Einstein proposed that light consists of tiny bursts of energy called ___B___ . Einstein’s formula for the photoelectric effect is very simple: hf = KE + w where hf = ___C___. KE = ___D___. w =___E___.
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