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JEE Advanced Work, Energy and Power questions with solutions

Work-energy theorem, conservative forces, springs, power and collisions. 9 questions from our 2016–2025 JEE Advanced pattern papers, from the Class 11 Physics syllabus. Each has the answer and a full solution.

Also practise: Work, Energy and Power for JEE Main · Work, Energy and Power for NDA

JEE Advanced 2025

A block of mass 2.0 kg lies on a rough horizontal table and is attached to a horizontal spring of force constant 200 N m^-1, the other end being…JEE Advanced 2025 Paper 2 · hard

JEE Advanced 2023

Two identical metal blocks, each of heat capacity C=1.5 kJ K^-1 (independent of temperature), are at 400 K and 100 K. A reversible heat engine…JEE Advanced 2023 Paper 2 · medium
A horizontal cylinder with a frictionless piston of area A contains a diatomic ideal gas (rigid rotor, Cv=5/2R) at pressure p0 and volume V0. The…JEE Advanced 2023 Paper 2 · hard

JEE Advanced 2022

A uniform flexible chain of mass M and length L is held vertically with its lower end just touching the pan of a weighing machine. It is released…JEE Advanced 2022 Paper 2 · hard

JEE Advanced 2021

Two identical copper blocks, each of mass 2.0 kg and specific heat 400 J kg^-1K^-1 (independent of temperature), are initially at 300 K and 500 K and…JEE Advanced 2021 Paper 1 · hard

JEE Advanced 2020

A block of mass 1.9 kg rests on a smooth horizontal table and is attached to a fixed wall by a light spring of force constant 400 N m^-1 along its…JEE Advanced 2020 Paper 1 · medium
A block of mass 0.90 kg rests on a rough horizontal floor (μ=0.20), attached to a light spring of constant 100 N m^-1 at its natural length. A bullet…JEE Advanced 2020 Paper 2 · medium

JEE Advanced 2019

A bob of mass 1.0 kg hangs from a light inextensible string of length 1.2 m. The bob is pulled aside until the string is horizontal and then…JEE Advanced 2019 Paper 2 · medium

JEE Advanced 2016

A block A of mass 1 kg is released from rest from a height of 1.8 m on a smooth curved track which ends tangentially on a horizontal surface. At the…JEE Advanced 2016 Paper 1 · medium

Other Physics topics

Atoms, Nuclei and Dual Nature of Radiation 35 Calorimetry and Heat Transfer 17 Capacitors 11 Current Electricity 13 Electromagnetic Induction and Alternating Current 25 Electrostatics 15 Fluid Mechanics, Elasticity and Surface Tension 21 Gravitation 13 Kinematics and Laws of Motion 11 Magnetic Effects of Current 34 Ray and Wave Optics 21 Rotational Motion 31 Simple Harmonic Motion 15 Thermodynamics and Kinetic Theory of Gases 23 Units and Measurements 8 Waves and Sound 28