A) remain constant
B) increases
C) becomes half
D) decreases
Correct Answer: D
Solution :
\[\Delta \lambda ={{\lambda }_{K\alpha }}\,-\,{{\lambda }_{min}}\] When V is halved Anun becomes two times but \[{{\lambda }_{K\alpha }}\] remains the same. \[\Delta \lambda ={{\lambda }_{K\alpha }}\,-\,{{\lambda }_{min}}\] \[\therefore \,\,\Delta \lambda \,\,decreases\]
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