What Is the Minimum Frequency of a Photon That Can

question 129

Multiple Choice

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^-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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