Physics WAEC

A metal has work function of 4.375 eV Calculate its threshold frequency. (h = 6.6 x 10^-34Js; 1eV = 1.6 x 10^-19J)

A. 2.01 X 10^15Hz
B. 1.06×10^15Hz
C. 6.30 x 10^14Hz
D. 1.60 x 10^14Hz

Correct Answer:

Option B – 1.06×10^15Hz

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