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Asked Sep 15, 2019
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a metal plate has a binding energy of 350.0kJ/mol. if a photon with a wavelength of 275 nm strikes the surface, at what velocity will an electron be ejected

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The binding energy = 350.0 kJ/mo...

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Incident energy= Binding energy + kinetic energy hc Incident energy (E) where, h Planck's constant 6.626x 1034 J/s c velocity of light =3x105 m/ s =wavelength-275 nm 275x10 m m Binding energy 350.0 kJ/mol= 350.0x10'J m 9.1x103 kg

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