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What Is the Minimum Frequency of a Photon That Can

Question 129

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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 What is the minimum frequency of a photon that can eject a photoelectron from Ba metal? (The work function of barium is = 4.3 *10<sup>-</sup><sup>19</sup> J.) A) 2.8 *10<sup>-</sup><sup>52 </sup>Hz B) 6.5 * 10<sup>14 </sup>Hz C) 6.5 * 10<sup>4</sup> Hz D) 6.5 * 10<sup>13</sup> Hz E) 2.8 * 10<sup>14 </sup>Hz = 4.3 *10-19 J.)


A) 2.8 *10-52 Hz
B) 6.5 * 1014 Hz
C) 6.5 * 104 Hz
D) 6.5 * 1013 Hz
E) 2.8 * 1014 Hz

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