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The work function (phi0), of a metal X, ...

The work function `(phi_0)`, of a metal X, equals `3xx10^(-19)J`. Calculate the number (N) of photons, of light of wavelength 26.52nm, whose total energy equal W. Plank's constant `=6.63xx10^(-34)Js.`

Text Solution

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`W=nhv=nh//lamda`
`3xx10^(-19)=(n.6.63xx10^(34)xx3xx10^(8))/(26.52xx10^(-9))`
`n=(3xx10^(-19)xx26.52xx10^(-9))/(6.63xx10^(-34)xx3xx10^(8))`
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