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Energy required to remove an electron from aluminium surface is 4.2 eV. If light of wavelength 2000∘A falls on the surface, the velocity of the fastest electron ejected from the surface will be |
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Answer» Energy required to remove an electron from aluminium surface is 4.2 eV. If light of wavelength 2000∘A falls on the surface, the velocity of the fastest electron ejected from the surface will be |
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