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What Is the Minimum Frequency of a Photon That Can

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What is the minimum frequency of a photon that can eject a photoelectron from Ba metal? (The work function of barium is 4.3 What is the minimum frequency of a photon that can eject a photoelectron from Ba metal? (The work function of barium is <font face= symbol ></font> <font face= symbol ></font> 4.3 <font face= symbol ></font>J.) A) 2.8 <font face= symbol ></font><sup> </sup>Hz B) 6.5 <font face= symbol ></font>Hz C) 6.5 <font face= symbol ></font>Hz D) 6.5 <font face= symbol ></font>Hz E) 2.8 <font face= symbol ></font><sup> </sup>Hz J.)

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