A) 384
B) 192
C) 300
D) 200
Correct Answer: A
Solution :
Wave number = \[\frac{1}{\lambda }\] but \[\frac{1}{\lambda '}=\frac{1}{\lambda }\left( \frac{v}{v-{{v}_{s}}} \right)\,\text{and}\ {{v}_{s}}=\frac{v}{3}\] \[\therefore \] (W.N.)? = (W.N.) \[\left( \frac{v}{v-v/3} \right)=256\times \frac{v}{2v/3}\] = \[\frac{3}{2}\times 256=384\]You need to login to perform this action.
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