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A student performs an experiment to observe photoelectric effect by shining light on a metal surface. The light source limits light of wavelength 450nm. The table given below lists the available metals and their corresponding work functions Metalϕ(ev)Tungsten4.5Lithium2.3Barium2.5Tantalum4.2 Which of the above metals can be used to produce electrons by the photoelectric effect from the given source of light? |
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Answer» A student performs an experiment to observe photoelectric effect by shining light on a metal surface. The light source limits light of wavelength 450nm. The table given below lists the available metals and their corresponding work functions Which of the above metals can be used to produce electrons by the photoelectric effect from the given source of light? |
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