A) \[\lambda >\lambda \]
B) \[\lambda =\frac{\lambda }{2}\]
C) \[\lambda =2\lambda \]
D) \[\frac{\lambda }{2}<\lambda <\lambda \]
Correct Answer: D
Solution :
We have, \[{{E}_{k}}=\frac{hc}{\lambda }-\text{o}{{|}_{0}}\] and \[2{{E}_{k}}=\frac{hc}{\lambda }-\text{o}{{|}_{0}}\] By the two relations, we have \[\lambda >\frac{\lambda }{2}\] and \[\lambda <\lambda \] So, \[\frac{\lambda }{2}<\,\lambda <\lambda \]
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