Question

Light of wavelength 400 nm is shone on a metal surface in an
apparatus like that of Fig. 2.9. The work function of the metal
is 2.50 eV. (a) Find the extinction voltage, that is, the retarding
voltage at which the photoelectron current disappears. (b) Find
the speed of the fastest photoelectrons.

Answer 1

Answer:

666

Explanation:

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