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One end of a steel wire is attached to a...

One end of a steel wire is attached to a fixed support and the other end is attached to a string, which is going over a pulley and is connected to a block, whch is hanging vertically. It is observed that the wire vibrates in its fundamental mode with frequency of 200 Hz. When the block is submerged in water, the same wire vibrates in its 1 harmonic with frequency of 100 Hz. Density of steel wire is `8000 kg//m^(3)` and length of wire is 1 m.

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a-q, b-p, c-s, d-r
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