February 2019 1 375 Report
Energi kinetik maksimum dari hasil penyinaran logam kalium dengan ultraviolet(lamda= 200 nm) bila panjang gelombang ambang kalium 440 nm adalah….

A. 3,0 eV.

B. 4,3 eV.

C. 3,9 eV.

D. 3,4 eV.

E. 9,9 eV.


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