If the radius of a rotating disc is doubled while keeping its mass constant, how does its moment of inertia about its axis change?

This question examines the effect of radius on the moment of inertia.

Develop a comprehensive set of multiple-choice questions (MCQs) for CBSE Class 11 Physics, Chapter 6: “System of Particles and Rotational Motion,” based on the NCERT syllabus for 2024-2025. The questions should cover essential topics such as center of mass, torque, angular momentum, rotational dynamics and equilibrium. Include both theoretical and numerical questions to test students’ grasp of the concepts as well as their ability to apply them in problem-solving scenarios. Ensure a mix of question difficulty, ranging from fundamental to more complex problems, so that it challenges students at different levels of understanding. The MCQs should be clear, concise and formulated to avoid ambiguity, ensuring that students can focus on applying their knowledge effectively. Align the content with NCERT guidelines to provide relevant and accurate practice material. This approach will aid students in preparing for exams and help solidify their understanding of rotational motion and systems of particles.