# If the ratio of lengths, radii and Young’s moduli of steel and brass wires in the figure are $a, b$ and $c$ respectively, then the corresponding ratio of increase in their lengths is:

Question:

If the ratio of lengths, radii and Young’s moduli of steel and brass wires in the figure are $a, b$ and $c$ respectively, then the corresponding ratio of increase in their lengths is:

1. $\frac{3 c}{2 a b^{2}}$

2. $\frac{2 a^{2} c}{b}$

3. $\frac{3 a}{2 b^{2} c}$

4. $\frac{2 a c}{b^{2}}$

JEE Main Previous Year Single Correct Question of JEE Main from Physics Mechanical Properties of Solids chapter.

JEE Main Previous Year April 9, 2013

Correct Option: 3

Solution:

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