Intermolecular forces exist between the molecules of a substance.
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Answer:

Explanation:
Given:
- cross sectional area of the wire,

- density of aluminium wire,

- young's modulus of the material,

- wave speed,

<u>We have mathematical expression for strain as:</u>
...............................(1)
and since, 
where, T = tension force in the wire
equation (1) becomes:
............................(2)
<u>Also velocity ofwave in tensed wire:</u>
...................................(3)
where:
linear mass density of the wire

Now, equation (3) becomes

............................(4)
Using eq. (2) & (4) for tension T


putting the respective values


Answer:
Work done= Energy transferred
Explanation:
Work is the transfer of energy. In physics we say that work is done on an object when you transfer energy to that object. If you put energy into an object, then you do work on that object (mass).