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Saturday, 10 October

JEE Main 2026 · PhysicsMultiple choiceSingle correctEasyData or graph

JEE Main 6 April 2026, Shift 2, Physics Q33

Question 33 of 75 in this shift, Physics question 8 of 25, Section A.

Figure represents the extension (Δl\Delta l) of a wire of length 1 meter, suspended from the ceiling of the room at one end with a load WW connected to the other end. If the cross-sectional area of the wire is 10−510^{-5} m2^2 then the Young's modulus of the wire is __________ N/m2^2.

The figure, in words

Straight-line graph through the origin of extension Δl (×10^-4 m, vertical axis, marked 1 to 6) versus load W (N, horizontal axis, marked 10, 20, 30, 40, 50, 60); points (10 N, 1), (20, 2), (30, 3), (40, 4), (50, 5), (60, 6) with dashed guide lines.
  1. (1)1.0×10111.0\times10^{11}
  2. (2)2.0×10102.0\times10^{10}
  3. (3)1.0×10101.0\times10^{10}Official answer
  4. (4)2.0×10112.0\times10^{11}

Official answer

Option 3

NTA final key.

Chapter
Mechanical Properties of Solids
Topic
Elasticity
Idea tested
Elastic Moduli

Same idea in other shifts

Asked 13× in all
  1. 4 Apr 2026, Shift 1 · Q27The increase in the pressure required to decrease the volume (ΔV\Delta V) of water is 6.3×107 N/m26.3\times10^{7}\ \mathrm{N/m^2}. The percentage…EasySingle correct
  2. 5 Apr 2026, Shift 1 · Q31The Young's modulus of steel wire of radius rr and length LL is YY. If the radius rr and length LL of the wire are doubled then the…EasySingle correct
  3. 5 Apr 2026, Shift 1 · Q46A cube has side length 5 cm and modulus of rigidity 105 N/m210^5\ \mathrm{N/m^2}. The displacement produced by a force of 10 N in the upper face…EasyNumerical value
  4. 4 Apr 2025, Shift 2 · Q32A cylindrical rod of length 1 m and radius 4 cm is mounted vertically. It is subjected to a shear force of 10510^5 N at the top.…MediumSingle correct
  5. 7 Apr 2025, Shift 1 · Q32Two wires A and B are made of same material having ratio of lengths LALB=13\frac{L_A}{L_B} = \frac{1}{3} and their diameters ratio…EasySingle correct
  6. 8 Apr 2025, Shift 2 · Q48A sample of a liquid is kept at 1 atm. It is compressed to 5 atm which leads to change of volume of 0.8 cm3^3. If the bulk modulus of the…EasyNumerical value
  7. 9 Apr 2024, Shift 1 · Q53Two persons pull a wire towards themselves. Each person exerts a force of 200200 N on the wire. Young's modulus of the material of wire is…EasyNumerical value
  8. 25 Jul 2022, Shift 1 · Q53A wire of length LL and radius rr is clamped rigidly at one end. When the other end of the wire is pulled by a force FF, its length…MediumNumerical value

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.