Calculate the percentage increase in length of a wire of diameter 1 mm stretched by a force of half kilo gram weight. Young's modulus of elasticity of wire is `12 xx 10^(11) dyn e // cm^(2)`

Explanation

To solve the problem of calculating the percentage increase in length of a wire when a force is applied, we will follow these steps:

### Step 1: Convert the diameter to centimeters
The diameter of the wire is given as 1 mm. We need to convert this to centimeters since the Young's modulus is provided in cgs units.

\[ \text{Diameter} (D) = 1 \text{ mm} = 0.1 \text{ cm} \]
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