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Standard XII

Physics

Work Function

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Question

State the approximate value of work function of an alkali metal in eV.

0.2 to 0.3 eV

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2 to 3 eV

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20 to 30 eV

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200 to 300 eV

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Solution

The correct option is B 2 to 3 eV
Values of Li,K,Cs,Na all lies approximately between 2eV to 3eV.

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State the approximate value of work function of an alkali metal in eV.

The correct option is B 2 to 3 eVValues of Li,K,Cs,Na all lies approximately between 2eV to 3eV.

The correct option is B 2 to 3 eV
Values of Li,K,Cs,Na all lies approximately between 2eV to 3eV.