A) \[\lambda '>\lambda \]
B) \[\lambda '=\frac{\lambda }{2}\]
C) \[\lambda '=2\lambda \]
D) \[\frac{\lambda }{2}<\lambda '<\lambda \]
Correct Answer: D
Solution :
We have,\[{{E}_{k}}=\frac{hc}{\lambda }-{{\phi }_{0}}\] and \[2{{E}_{k}}=\frac{hc}{\lambda '}-{{\phi }_{0}}\] By the two relations, we have \[\lambda '>\frac{\lambda }{2}\] and \[\lambda '<\lambda \] So, \[\frac{\lambda }{2}<\lambda '<\lambda \]You need to login to perform this action.
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