Home
Class 12
PHYSICS
A bob of mass m is tied with a thread an...

A bob of mass m is tied with a thread and is made to move in a circular path on a frictionless table surface about point 'O' as shown in diagram. A hypothetical electric field in radial direction exists along the table surface. In this condtion the bob is uncharged and tension is thread is T. If bob is given some charge-

A

Tension in thread must increase

B

Tension in thread may increase or decrease

C

Tension in thread will remain unchanged

D

Tension in thread must decrease

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEET MOCK TEST 4

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NEET MOCK TEST 8

    NTA MOCK TESTS|Exercise PHYSICS - SINGLE CHOICE|45 Videos

Similar Questions

Explore conceptually related problems

A bob of mass m is tied with a thread and is made to move in a circular path on a frictionless table surface about point 'O' as shown in diagram. A hypothetical electric field in radial direction exists along the table surface. In this condition the bob is uncharged and tension in the thread is T. If bob is given some charge-

A small disc can slide in a circular path on a frictionless inclined plane inclined at an angle of 30^(@) with the help of a thread as shown. Mass of the disc is m and acceleration due to gravity is g . If the disc is released, when the thread is horizontal, expression for the tension in the thread at the lowest point 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 in tied to a string of length l & and kept on a horizontal rough surface as shown in the figure when point O of the string is fixed. The bob is given a tangential velocity V_(0) keeping the string taut as shown in figure. Find the tension in the string as a function of time. The coefficient of kinetic friction is mu .

An object of mass m is submerged completely inside water filled in a container kept on a horizontal surface as shown. The object is tied to the bottom of the vessel by a massless, thin thread. In equilibrium, the tension in the thread is T. The relative density of the object is :

A puck of mass m is moving in a circle at constant speed on a frictionless table as shown in the figure . The puck is connected by a string to a suspended bob, also of mass m , which is at rest below the table. Half of the length of the string is above the tabletop and half below. What is the magnitude of the centripetal acceleration of the moving puck ? Let g be the acceleration due to gravity.

A block of mass m and charge q is connected to a point 0 with help ofan inextensible string. The system in on a horizontal table. An electric field is switched on in direction perpendicular to string. What will be tension in string when it become parallel to electric field?

Soap bubble of radius R is blown at one end of a pipe of circular of circular cross-section of radius R as shown in diagram. On the vertical portion of pipe, there is a piston of mass m. T is surface tension of liquid. If piston is slightly displaced in downward direction, then its acceleration when radius of bubble grows to 2R is

NTA MOCK TESTS-NEET MOCK TEST 5-PHYSICS - SINGLE CHOICE
  1. After perfectly inelastic collision between two identical balls moving...

    Text Solution

    |

  2. The wavelength of maximum energy released during an atomic axplosion w...

    Text Solution

    |

  3. A bob of mass m is tied with a thread and is made to move in a circula...

    Text Solution

    |

  4. Consider the situation shown in the figure. The wall is smooth but the...

    Text Solution

    |

  5. An engine is attahed to a wagon through a shock absorber of length 1.5...

    Text Solution

    |

  6. If R(1) and R(2) are the resistances of the filaments of 200 W and 100...

    Text Solution

    |

  7. If N(0) is the original mass of the substance of half - life period t(...

    Text Solution

    |

  8. A mass of 2kg is attached to the spring of spring constant 50Nm^(-1). ...

    Text Solution

    |

  9. A vehicle of mass m is moving on a rough horizontal road with momentum...

    Text Solution

    |

  10. Two coherent point sources S1 and S2 are separated by a small distance...

    Text Solution

    |

  11. In the figure shown below, an ideal gas is carried around the cyclic p...

    Text Solution

    |

  12. One litre of oxygen at a pressure of 1 atm and two litres of nitrogen ...

    Text Solution

    |

  13. A coil having 200 turns has a surface area of 0.15m^(2). A magnetic fi...

    Text Solution

    |

  14. A jet water, whose cross section is A strikes a wall making an angle t...

    Text Solution

    |

  15. A sound wave of frequency f propagating through air with a velocity c,...

    Text Solution

    |

  16. Two men A and B are carrying a uniform bar of length L on their should...

    Text Solution

    |

  17. A body is falling under gravity . When it loses a gravitational potent...

    Text Solution

    |

  18. Dimensional formula of magnetic field is :-

    Text Solution

    |

  19. Two particles are projected simultaneously in the same vertical plane,...

    Text Solution

    |

  20. The diagram of a logic circuit is given below. The output F of the cir...

    Text Solution

    |