Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is

Question:

Among the following, number of metal/s which can be used as electrodes in the photoelectric cell is_____________ (Integer answer).

  1. Li

  2. Na

  3. Rb

  4. Cs


Correct Option: , 4

Solution:

Cs is used in photoelectric cell due to its very low ionization potential.

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