1. | Moment of inertia of a disc about an axis which is tangent and parallel to its plane is I. then the moment of inertia of disc about a tangent,, but perpendicular to its plane will be **(MHT-CET-2005)** (a) _{} (b) _{} (c) _{} (d) _{} |

2. | If radius of solid sphere is doubled by keeping its mass constant, then (a) _{} (b) _{} (c) _{} (d) _{} Answer: (a) |

3. | Calculate the M.I. of a thin uniform ring about an axis tangent to the ring and in a plane of the ring, if its M.I. about an axis passing through the centre and perpendicular to plane is 4 kg m^{2}. **(MHT-CET-2006)** (a) 12 kg m^{2} (b) 3 kg m^{2} (c) 6 kg m^{2} (d) 9 kg m^{2} Answer: (c) |

4. | By keeping moment of inertia of a body constant, if we double the time period, then angular momentum of body **(MHT-CET-2005)** (a) Remains constant (b) Becomes half (c) Doubles (d) Quadruples Answer: (b) |

5. | _{} represents **(MH-CET 2003)**
(a) Rotational kinetic energy of a particle. (b) Potential energy of a particle (c) Torque on a particle (d) Power Answer: (a) |

6. | The M.I. of a disc about an axis passing through its centre and perpendicular to plane is _{}, then its M.I. about a tangent parallel to its diameter is **[MH-CET 2002****]** (a) _{} (b) _{} (c) _{} (d) _{} Answer: (c) |

7. | The M.I. of disc about an axis perpendicular to its plane and passing through its centre is _{} Its M.I. about a tangent perpendicular to its plane will be **(MH-CET 2002)** (a) _{} (b) _{} (c) _{} (d) Cannot be determined Answer: (b) |

8. | The torque acting is 2000Nm with an angular acceleration of 2 rad/s^{2}. the moment of inertia of body is **(MHT-CET-2004)** (a) 1200 kgm^{2} (b) 900 kgm^{2} (c) 1000 kgm^{2} (d) Can’t say Answer: (d) |

9. | Four solid spheres each of mass M and diameter 2r, are placed with their centers on the four corners of a square of side a (> 2r). the moment of inertia of the system about one side of square is **(DEC 92)** (a) _{} (b) _{} (c) _{} (d) _{} Answer: (d) |

10. | For increasing the angular velocity of a object by 10%, the kinetic energy has to be increased by **(MHT-CET-2001)**
(a) 40% (b) 20% (c) 10% (d) 21% Answer: (d) |