For a photosensitive surface, the work function is 3.3 10-19 J. Calc – McqOptions

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1.	For a photosensitive surface, the work function is 3.3 10-19 J. Calculate the threshold frequency.
A.	15 10<sup>14</sup> Hz
B.	25 10<sup>14</sup> Hz
C.	5 10<sup>14</sup> Hz
D.	55 10<sup>14</sup> Hz
Answer» D. 55 10<sup>14</sup> Hz

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