jee_main_2024_30_january_evening - System of Particles and Rotational Motion Topics

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QUESTION #53 Loss in Kinetic Energy on Coupling
Two discs of moment of inertia I₁ = 4 ~kg ~m² and I₂ = 2 ~kg ~m² about their central axes & normal to their planes, rotating with angular speeds 10 ~rad/s & 4 ~rad/s respectively are brought into contact face to face with their axe of rotation coincident. The loss in kinetic energy of the system in the process is ________ J.
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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