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When light of wavelength 350 nm falls on a potassium surface, electrons having a maximum kinetic energy of 1.31 eV are emitted. Find values for the following.
(a) the work function of potassium
eV
(b) the cutoff wavelength
nm
(c) the frequency corresponding to the cutoff wavelength
Hz
If, instead, the gold is drawn out into a cylindrical fiber of radius 1.5µm, what is the length of fiber.
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find the energy in joules of the photons.
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The first star on the handle of the Big Dipper and the star that forms the far bottom edge of the bowl(Merak).
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
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