A photon with a wavelength of 415 nm strikes a metal
A photon with a wavelength of 415 nm strikes a metal surface ejecting an electron with a velocity of 9.0 x 10^5 m/sec. What is the threshold frequency of the metal?
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a photon with a wavelength of 415 nm strikes a metal surface ejecting an electron with a velocity of 90 x 105 msec what
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