JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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The work-function for photoelectric effect :

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Correct option: C

Is different for different metals

Option C (Is different for different metals) is correct because the work function depends on the metal's electronic structure and the energy required to remove an electron.

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. The atomic radius of atom is 1 Å. If the mass no. is 64, the fraction of the atomic volume that is occupied by nucleus is: