JEE Main Physics · Mechanical Properties of Solids

Series and Parallel Composite Wires

Series and Parallel Composite Wires (Mechanical Properties of Solids) was asked 4 times in 4 JEE Main shifts, 2021–2026, out of the 42 shifts Lumi analysed.

Times asked: 4; in 4 shifts
Years: 2021–2026
Usual format: Single correct; Calculation
Pattern: Occasional; repeats across shifts

How it is asked

Extension of series composite wires
Ratio of elongations of two strings

Difficulty

Easy 1Medium 3Hard 0

Where it sits

Chapter: Mechanical Properties of Solids. Topic: Elasticity, 35 questions over 12 ideas.

All 4 questions

Newest first, each with its options and official answer.

4 Apr 2026, Shift 1 · Q34A string $A$ of length $0.314$ m and Young's modulus $2\times10^{10}\ \mathrm{N/m^2}$ is connected to another string $B$ of length and…MediumSingle correct
4 Apr 2026, Shift 2 · Q31A metal string $A$ is suspended from a rigid support and its free end is attached to a block of mass $M$ . Second block having mass $2M$ is…MediumSingle correct
6 Apr 2026, Shift 1 · Q34The two wires $A$ and $B$ of equal cross-section but of different materials are joined together. The ratio of Young's modulus of wire $A$ …EasySingle correct
25 Jul 2021, Shift 1 · Q18Two wires of same length and radius are joined end to end and loaded. The Young's modulii of the materials of the two wires are $Y_1$ and…MediumSingle correct