A) \[-ve\]
B) \[+ve\]
C) \[\therefore \]
D) \[=0\]
Correct Answer: A
Solution :
Resonating frequency \[h=\frac{{{u}^{2}}}{2g}=\frac{49\times 49}{2\times 9.8}=\frac{245}{2}m\] \[={{h}_{1}}+{{h}_{2}}=\frac{245}{2}+\frac{245}{2}=245m\] Dimension of LC = Dimension of \[Work=force\times displacement\] \[={{F}_{s}}.d\]
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