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32.Ultraviolet light of6.2 eV falls on aluminium surface (workfunction 4.2 eV). The kinetic energy (in joule) of thefastest electron emitted is approximately:(a) 3 x 1041(c) 3 x 10-17(b)3 x 10-19(d)3 x 10-15 |
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Answer» the pic is not clear |
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