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Elastic Potential Energy for JEE: 11 solved questions

Real JEE paper questions on elastic potential energy, part of mechanical properties of solids. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2003 to 2026. No sign-in needed to read them.

What this topic asks

• Energy stored in a stretched wire — 11 questions

All 11 questions with solutions

• An aluminium rod with Young's modulus Y=7.0×10¹⁰ N m⁻² undergoes an elastic strain of 0.04%. The energy per u… JEE Main 8th April 1st Shift 2023
• Two steel wires of the same length are suspended from a ceiling under the same load. If the ratio of their en… JEE Main 9th Jan 2nd Shift 2020
• A boy's catapult is made of a rubber cord which is 42 cm long, with a 6 mm diameter of cross-section and of n… JEE Main 8th April 1st Shift 2019
• If S is the stress and Y is the Young's modulus of the material of a wire, the energy stored in the wire per… AIEEE 2005
• A wire fixed at the upper end stretches by a length l when a force F is applied. The work done in stretching… AIEEE 2004
• A wire suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end… AIEEE 2003
• A copper wire of length 3 m is stretched by 3 mm by applying an external force. The volume of the wire is 600… JEE Main 5th April 2nd Shift 2026
• A steel wire of length 2 m and Young's modulus 2.0×10¹¹ N m⁻² is stretched by a force. If the Poisson ratio a… JEE Main 2nd April 1st Shift 2025
• The elastic potential energy stored in a steel wire of length 20 m stretched through 2 cm is 80 J. The cross-… JEE Main 13th April 1st Shift 2023
• The elastic behaviour of a material for linear stress and linear strain is shown in the figure. The energy de… JEE Main 24th June 1st Shift 2022
• A stone of mass 20 g is projected from a rubber catapult of length 0.1 m and area of cross-section 10⁻⁶ m², s… JEE Main 27th July 1st Shift 2021