Prisijunkite
WAEC - Physics (1999 - No. 44)
A metal has work function of 4.375 eV Calculate its threshold frequency. (h = 6.6 x 10
-34
Js; 1eV = 1.6 x 10
-19
J)
2.01 X 10
15
Hz
1.06x10
15
Hz
6.30 x 10
14
Hz
1.60 x 10
14
Hz
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