Ultraviolet light of 6.2 eV falls on aluminium surface (work function – InterviewSolution

1.	Ultraviolet light of 6.2 eV falls on aluminium surface (work function = 4.2 eV). The kinetic energy (in joule) of the fastest electron emitted is approximately:
Answer» `3xx10^(-21)` `3xx10^(-19)` `3xx10^(-17)` `3xx10^(-15)` ANSWER :B

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