A) \[4{{\lambda }_{\operatorname{o}}}\]
B) \[2{{\lambda }_{\operatorname{o}}}\]
C) \[\frac{{{\lambda }_{\operatorname{o}}}}{2}\]
D) \[\frac{{{\lambda }_{\operatorname{o}}}}{4}\]
Correct Answer: B
Solution :
\[\operatorname{Work} function {{W}_{o}}=\frac{hc}{{{\lambda }_{\operatorname{o}}}}\] .....(1) \[If\,\,\operatorname{Work} function \frac{{{W}_{o}}}{2}=\frac{hc}{{{\lambda }_{\operatorname{o}}}}\] ..... (2) by (1) and (2) \[\operatorname{We} get {{\lambda }_{1}}=2{{\lambda }_{o}}\]You need to login to perform this action.
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