If the work function of a metal is 449 ev what is the
If the work function of a metal is 4.49 eV, what is the maximum wavelength of light that can be used to observe the photoelectric effect?
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if the work function of a metal is 449 ev what is the maximum wavelength of light that can be used to observe the
a 70 kg block hangs from a spring extending it 22 cm from its unstretched position what is the spring constant the
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2450 nm ultraviolet light strikes a metal plate and ejects electrons having kinetic energy e 179 ev calculate the
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