State what is the longest wavelength of light shone

Reference no: EM13195937

The binding energy of electrons to gold is 492 kJ/mol. What is the longest wavelength of light shone on gold that will cause electrons to be ejected?

A) 243 nm

B) 545 nm

C) 0.245 nm

D) 404 nm

E) 1.82 . 10-15 m

Reference no: EM13195937

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