Home
Class 12
PHYSICS
A bob of mass m attached to an inextensi...

A bob of mass m attached to an inextensible string of length l, is suspended from a vertical support. Bob rotates in a horizontal circle with angular speed `omega` and string makes an angle of `theta` with the vertical. Find the angular momentum of bob about axis of rotation

A

`m l^2 omega sin^2(theta)`

B

`2m l^2 omega sin^2(theta)`

C

`m l^2 omega cos^2(theta)`

D

`2m l^2 omega cos^2(theta)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise SECTION-A|80 Videos

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise SECTION-B|40 Videos

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise All Questions|473 Videos

  • JEE MAIN 2022

    JEE MAINS PREVIOUS YEAR|Exercise Question|492 Videos

Similar Questions

Explore conceptually related problems

A bob of mass m attached to an inextensible string of length I is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed omega red/s about the vertical. About the point of suspension:

A stone tied to a string of length l is whirled in a horizontal circle at a constant angular speed omega in a circle of radius r. If the string makes an angle theta with vertical then the tension in the string is :

A simple pendulum is constructed by attaching a bob of mas m to a string of length L fixed at its upper end. The bob oscillates in a vertical circle. It is found that the speed of the bob is v when the string makes an angle theta with the vertical. Find the tension in the string at this instant.

A coical pendulum consists of a string of length L whose upper end is fixed and another end is tied to a bob. The bob is moving in horizontal circle with constant angular speed omega such that the string makes a constant angle theta with the verticle. calculate time period T_(0) of revolution of bob in terms of L,g and theta .

A smalll bob attached to a string of length l is suspended from a rigid support and rotates with uniform speed along a circle in a horizontal plane. Let theta be the angle made by the string with the vertical, then the length of a simple pendulum having the same period is

A simple pendulum of length l is set in motion such that the bob, of mass m, moves along a horizontal circualar path , and the string makes a constant angle theta with the vertical. The time period of rotation of the bob is l and the tension in the thread is T

A bob of mass m=50g is suspended form the ceiling of a trolley by a light inextensible string. If the trolley accelerates horizontally, the string makes an angle thata=37^(@) with the vertical. Find the acceleration of the trolley.

Two balls of masses m and 2m are attached to the ends of a light rod of length L . The rod rotates with an angular speed omega about an axis passing through the center of mass of system and perpendicular to the plane. Find the angular momentum of the system about the axis of rotation.

JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B
  1. A bob of mass m attached to an inextensible string of length l, is sus...

    Text Solution

    |

  2. A ball of mass 10 kg moving with a velocity 10sqrt3 m//s along the x-...

    Text Solution

    |

  3. As shown in the figure, a particle of mass 10 kg is placed at a point ...

    Text Solution

    |

  4. A particle performs simple harmonic motion with a period of 2 second. ...

    Text Solution

    |

  5. The voltage across the 10 resistor in the given circuit is x volt. ...

    Text Solution

    |

  6. A bullet of mass 0.1 kg is fired on a wooden block to pierce through i...

    Text Solution

    |

  7. Two separate wires A and B are stretched by 2 mm and 4 mm respectively...

    Text Solution

    |

  8. A parallel plate capacitor has plate area 100 m^2 and plate separation...

    Text Solution

    |

  9. The circuit shown in the figure consists of a charged capacitor of cap...

    Text Solution

    |

  10. An npn transistor operates as a common emitter amplifier with a power ...

    Text Solution

    |

  11. A person is swimming with a speed of 10 m/s at an angle of 120° with t...

    Text Solution

    |

  12. A body of mass 2 kg moves under a force of (2hati +3hatj +5hatk) N. It...

    Text Solution

    |

  13. A solid disc of radius 'a' and mass 'm' rolls down without slipping on...

    Text Solution

    |

  14. The energy dissipated by a resistor is 10 mj in 1 s when an electric c...

    Text Solution

    |

  15. For an ideal heat engine, the temperature of the source is 127^(@)C. I...

    Text Solution

    |

  16. In a parallel plate capacitor set up, the plate area of capacitor is 2...

    Text Solution

    |

  17. A deviation of 2^(@) is produced in the yellow ray when prism of crown...

    Text Solution

    |

  18. If one wants to remove all the mass of the earth to infinity in order ...

    Text Solution

    |

  19. A force vecF=4hati+3hatj+4hatk is applied on an intersection point of ...

    Text Solution

    |

  20. A closed organ pipe of length L and an open organ pipe contain gases o...

    Text Solution

    |

  21. A swimmer can swim with velocity of 12 km/h in still water. Water flow...

    Text Solution

    |