The threshold wavelength for the ejection of electron for metal X is 3 – InterviewSolution

1.	The threshold wavelength for the ejection of electron for metal X is 330 nm. The work function for photoelectric emission from metal X is (h=6.6xx10^(-34)Js)
Answer» `1.2xx10^(-18)J` `1.2xx10^(20)J` `6xx10^(-19)J` `6xx10^(-12)J` Solution :Work function `hv_(0)=(hc)/(lamda_(0))=(6.6xx10^(-34) xx3.0xx10^(8))/(330xx10^(-9))` `=6.0xx10^(-19)J`

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