The sphere with the longer period of oscillation is the one with the larger rotational inertia. This is because the period of oscillation for a physical pendulum is directly proportional to the square root of its rotational inertia and inversely proportional to the square root of its mass and the distance from the pivot point to the center of mass. Therefore, a larger rotational inertia, caused by a larger radius and/or mass, results in a longer period.
Two uniform spheres are pivoted on horizontal axes that are tangent to their surfaces. The one with the longer period of oscillation is the one with _______?
Review the verified answer and explanation for this SPSC – Sindh Public Service Commission past-paper question on CampusFin.
Question context
This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.