Ejection of the photoelectron from metal...

Ejection of the photoelectron from metal in the photoelectric effect experiment can be stopped by applying 0.5 V when the radiation of 250 nm is used. The work function of the metal is

4.5eV

5 eV

5.5eV

4 eV

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The correct Answer is:

1eV= `1.602 xx 10^(-19)J`, energy to slop PEE= 0.5eV
`((hc//lamda))/(1.602 xx 10^(-19)) (eV)= 0.5 eV+` work function

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