A) \[1:2\]
B) \[2:1\]
C) \[4:1\]
D) \[1:4\]
Correct Answer: B
Solution :
Work function is given by \[\phi =\frac{hc}{\lambda }\] or \[\phi \propto \frac{1}{\lambda }\] \[\because \] \[\frac{{{\phi }_{1}}}{{{\phi }_{2}}}=\frac{{{\lambda }_{2}}}{{{\lambda }_{1}}}=\frac{600}{300}=\frac{1}{2}\]You need to login to perform this action.
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