A) \[322\,m{{s}^{-1}}\]
B) \[341\,m{{s}^{-1}}\]
C) \[335\,m{{s}^{-1}}\]
D) \[328\,m{{s}^{-1}}\]
Correct Answer: D
Solution :
\[\frac{{{\lambda }_{1}}}{4}=11\,cm.+e\] \[\Rightarrow \] \[\frac{\nu }{512\times 4}=11\,cm.+e\]? (1) |
\[\frac{{{\lambda }_{2}}}{4}=27cm.+e\] \[\Rightarrow \] \[\frac{\nu }{256\times 4}=27cm.+e\] ? (2) |
Equation \[(2)-(1)\frac{\nu }{256\times 4}\times \frac{1}{2}-0.16\] |
\[\nu =0.16\times 2\times 4\times 256=327.68\,\text{m/s}\] |
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