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The minimum energy required overcoming t...

The minimum energy required overcoming the attractive forces between electron and the surface of a Ag metalis `7.52xx10^(-19)J`. What will be the maximum kinetic enerlgy of electron ejected out from Ag which is beign exposed to UV light of `lamda=360Å`.

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Energy absorbed `=(hc)/lambda `
`=(6.62xx10^(-27)xx3.0xx10^(10))/(360xx10^(-8)`
`=5.52xx10^(-11)erg`
`=5.52xx10^(-18)"joule"`
Maxiumun kintetic energy of electron=`(7.52xx10^(-19))-(0.552xx10^(-19))`
`=6.968xx10^(-19)"Joule"`.
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