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OpenStudy (anonymous):
What wavelength of light is needed to eject an electron from an aluminum atom given its binding energy is 9.60 x 10-19 J?
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OpenStudy (aaronq):
E= hc/lambda
OpenStudy (anonymous):
can you show me how to do that
OpenStudy (aaronq):
plug it in, and solve like algebra E=hc/lambda lambda = hc/E lambda= hc/9.60 x 10-19 J h = plancks constant, c = speed of light
OpenStudy (anonymous):
6.626*10^-34*3.00*10^8 is that it
OpenStudy (anonymous):
/9.60*10^-19
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OpenStudy (aaronq):
yep
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