work function of copper is of the order of
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sorry
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Plant tissue is a collection of similar cells performing an organized function for the plant. Each plant tissue is specialized for a unique purpose, and can be combined with other tissues to create organs such as leaves, flowers, stems and roots. The following is a brief outline of plant tissues, and their functions within the plant.
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The work functions of surfaces of copper, silver and aluminium, produced by the deposition of thin films of the metal from the vapour on to previously well-aged tungsten surfaces, have been found to be: 4·61 ± 0·04, 4·35 ± 0·05 and 4·25 ± 0·05 eV respectively.
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