Electromagnetic radiation of wavelength 96.4 nm was projected on a zinc plate with a 6.01×10-19 J...
Electromagnetic radiation of wavelength 96.4 nm was projected on a zinc plate with a 6.01×10-19 J of work function. Calculate the kinetic energy of an emitted electron.
a. -6.01×10-19 J
b. 1.46×10-18 J
c. 28.9 J
d. 2.66×10-18 J
e. 4.69×1048 J
Homework Answers
= 96.4nm
= 96.4*10^-9m
W = 6.01*10^-19 J
KE = hc/
- W
= 6.625*10^-34 * 3*10^8/(96.4*10^-9) - 6.01*10^-19
= 2.06*10^-18 - 6.01*10^-19
= 2.06*10^-18 - 0.601*10^-18
= 1.46*10^-18 J
b. 1.46×10-18 J >>>>answer
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