Determine the threshold frequency for metal X (w = 3.7 X 10-19 J).
work function = 3.7 x 10^-19 J
energy = h v
h vo = 3.7 x 10^-19 J
( 6.6 x 10^-34 J / s ) vo = 3.7 x 10^-19 J
vo = 5.6 x 10^14 Hz
threshold frequency = 5.6 x 10^14 Hz
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, Vo. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.79 x 1014 -! Eo 25.11 x10-20 J With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of 245 nm? 56.025 x10-19 -electron Incorrect
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