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Miscellaneous·2018·Easy

Which one of the following metals is used in the filaments of photo-electric cells that convert light energy into electric energy?

Which one of the following metals is used in the filaments of photo-electric cells that convert light energy into electric energy?

Options

  1. a.

    Tungsten

  2. b.

    Copper

  3. c.

    Rubidium

    Correct answer
  4. d.

    Aluminium

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