A) 4
B) 2
C) 8
D) 1
Correct Answer: A
Solution :
\[n\propto \sqrt{T}\] Þ \[\frac{\Delta n}{n}=\frac{1}{2}\frac{\Delta T}{T}\] Beat frequency \[=\Delta n=\left( \frac{1}{2}\frac{\Delta T}{T} \right)\,n=\frac{1}{2}\times \frac{2}{100}\times 400=4\]You need to login to perform this action.
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