1.

A wire having a linear density `0.1 kg//m` is kept under a tension of `490N`. It is observed that it resonates at a frequency of `400 Hz`. The next higher frequency is `450 Hz`. Find the length of the wire.A. `0.4 m`B. `0.6 m`C. `0.49 m`D. `0.7 m`

Answer» Correct Answer - D


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