JEE Main 2026 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 6 April 2026, Shift 1, Physics Q34

Question 34 of 75 in this shift, Physics question 9 of 25, Section A.

The 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

and wire

B

is 20/11. When the joined wire is kept under certain tension the elongations in the wires

A

and

B

are equal. If the length of wire

A

is 2.2 m, then the length of wire

B

is ________ m.

(1)1.1
(2)2.22
(3)1.21Official answer
(4)4.44

Official answer

Option 3

NTA final key.

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Series and Parallel Composite Wires

Same idea in other shifts

Asked 7× in all

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
10 Apr 2023, Shift 1 · Q51Two wires each of radius 0.2 cm and negligible mass, one made of steel and the other made of brass are loaded as shown in the figure. The…MediumNumerical valueHas a figure
27 Jul 2022, Shift 2 · Q37A steel wire of length 3.2 m ( $Y_s=2.0\times10^{11}$ Nm $^{-2}$ ) and a copper wire of length 4.4 m ( $Y_c=1.1\times10^{11}$ Nm $^{-2}$ ), both…MediumSingle correct
30 Jul 2022, Shift 2 · Q6A block of mass M is attached to a wire. The upper part of wire is made of steel and lower part of wire of copper ( as shown in figure ).…EasySingle correctHas a figure
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

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.