jee_main_2026_28_january_morning - System of Particles and Rotational Motion Topics

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QUESTION #29 Moment of Inertia and Torque
Two circular discs of radius each 10 cm are joined at their centres by a rod of length 30 cm and mass 600 gm as shown in figure. {{IMG1}} If the mass of each disc is 600 gm and applied torque between two discs is 43 × 10⁵ ~dyne· cm, the angular acceleration of the discs about the given axis AB is ____ rad/s² .
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QUESTION #48 Radius of Gyration
A solid sphere of radius 10 cm is rotating about an axis which is at a distance 15 cm from its centre. The radius of gyration about this axis is √(n) cm. The value of n is ____
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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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