A) 16:9:4:1
B) 4:3:2:1
C) 1:4:2:16
D) 1:2:3:4
Correct Answer: D
Solution :
\[\operatorname{f}=\frac{1}{2\pi }\sqrt{\frac{\operatorname{T}}{{{\,}_{\mu }}^{\operatorname{o}}}}\] \[\operatorname{f}\propto \sqrt{\operatorname{T}}\] Ratio of fundamental frequency \[\sqrt{{{\operatorname{T}}_{1}}}:\sqrt{{{\operatorname{T}}_{2}}}:\sqrt{{{\operatorname{T}}_{3}}}:\sqrt{{{\operatorname{T}}_{4}}}\] \[\sqrt{1}:\sqrt{4}:\sqrt{9}:\sqrt{16}\] \[1:2:3:4\]
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