Exams › JEE Main › Physics
Match List-I with List-II List-I A. Moment of inertia of solid sphere of radius R about any tangent B. Moment of inertia of hollow sphere of radius (R) about any tangent. C. Moment of inertia of circular ring of radius (R) about its diameter. D. Moment of inertia of circular disc of radius (R) about any diameter. List-II I. 5/3 MR² II. 7/5 MR² III. 1/4 MR² IV. 1/2 MR² Choose the correct answer from the options given below (1) A-II, B-I, C-IV, D-III (2) A-I, B-II, C-IV, D-III (3) A-II, B-I, C-III, D-IV (4) A-I, B-II, C-III, D-IV
- A-II, B-I, C-IV, D-III
- A-I, B-II, C-IV, D-III
- A-II, B-I, C-III, D-IV
- A-I, B-II, C-III, D-IV
Correct answer: A-II, B-I, C-IV, D-III
Solution
The correct option matches the moment of inertia formulas for each shape accurately: the solid sphere about a tangent is 5/3 MR² (A-II), the hollow sphere about a tangent is 7/5 MR² (B-I), the circular ring about its diameter is 1/2 MR² (C-IV), and the circular disc about any diameter is 1/4 MR² (D-III).
Related JEE Main Physics questions
- A satellite moving through a region of free space collects interplanetary dust that is initially at rest. If the dust is gathered at the rate \(\frac{dM}{dt}=\alpha v\), then the satellite’s acceleration is
- A rocket initially ejects gas from its rear at a mass rate of \(0.1\,\text{kg s}^{-1}\). If the exhaust speed relative to the rocket is \(50\,\text{m s}^{-1}\) and the rocket’s mass is \(2\,\text{kg}\), what is its acceleration in \(\text{m s}^{-2}\)?
- A block of mass \(m\) lies at rest on a frictionless horizontal floor. A uniform rope of mass \(m/3\) has one end attached to the block, and the free end is pulled horizontally by a force \(F\). What is the tension at the midpoint of the rope?
- A block of mass \(m\) is attached to a second block of mass \(M\) by a light spring of spring constant \(k\). Both blocks lie on a frictionless horizontal surface. Initially, the system is at rest and the spring is at its natural length. A constant force \(F\) is then applied to the block of mass \(M\) to pull it. Determine the force exerted by the block of mass \(m\).
- A thin ring of mass $M$ and radius $R$ is spinning about its symmetry axis with angular speed $\omega$. Two identical small masses, each of mass $m$, are then lightly fixed at the two opposite ends of a diameter of the ring. The decrease in kinetic energy is
- A sphere rolls on a surface without slipping. Its radius of gyration about an axis through its centre of mass is $K$, and its radius is $R$. What fraction of the total kinetic energy is due to rotation?
⚔️ Practice JEE Main Physics free + battle 1v1 →