Two wires \( \mathrm{A} \) and \( \mathrm{B} \) are of same materia...

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Two wires \( \mathrm{A} \) and \( \mathrm{B} \) are of same materials. Their length are in the ratio \( 3: 4 \) and diameters are in the ratio
P \( 5: 1 \) when stretched by force \( F_{A} \) and \( F_{B} \) respectively they get equal in increase in their lengths. The ratio of \( F_{B} / F_{A} \) is.
a. \( 0.01 \)
b. \( 0.03 \)
c. \( 0.04 \)
d. \( 0.05 \)
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