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The Graph Shows the Kinetic Energy of Photoelectrons Ejected from a Certain

Question 141

Multiple Choice

The graph shows the kinetic energy of photoelectrons ejected from a certain metal as a function of the frequency of the light incident upon the metal. The work function of this metal is A) 33 × 10<sup>-20</sup> J. B) 20 × 10<sup>-20</sup> J. C) 10 × 10<sup>-20</sup> J. D) 5 × 10<sup>-20</sup> J. E) None of these is correct. The graph shows the kinetic energy of photoelectrons ejected from a certain metal as a function of the frequency of the light incident upon the metal. The work function of this metal is


A) 33 × 10-20 J.
B) 20 × 10-20 J.
C) 10 × 10-20 J.
D) 5 × 10-20 J.
E) None of these is correct.

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