Home
Class 11
PHYSICS
Asseration : If work by done conservati...

Asseration : If work by done conservative forces is positive, kinetic energy will increase.
Reason : Because potential energy will decrease.

A

both conservative and none conservative force

B

conservative forces only

C

Non-conservative forces only

D

nether conservative nor none conservative force

Text Solution

Verified by Experts

The correct Answer is:
B
In case of non- conservative force the work done is dissipated its heat sound ect i.e. does not increase the potential energy but in case of conservative force work done is responsible for increasing the potential energy
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY, POWER AND COLLISION

    A2Z|Exercise Conservation Of Mechanical Energy And Linear Momentum|24 Videos

  • WORK, ENERGY, POWER AND COLLISION

    A2Z|Exercise Mechanical Power|25 Videos

  • WORK, ENERGY, POWER AND COLLISION

    A2Z|Exercise Work-Energy Theorem|27 Videos

  • WAVES AND ACOUSTICS

    A2Z|Exercise Chapter Test|30 Videos

Similar Questions

Explore conceptually related problems

Can work done by a non - conservative force be positive ?

If work done by electric field is positive, then the potential energy

if work done by a conservative force is positive the select the correct option(s). (a) potential energy will decrease. (b) potential energy may increase or decrease. (c )kinetic energy will increase. (d) kinetic energy may increase or decrease.

A : The potential energy of a system increases when work is done by conservative force. R : Kinetic energy can change into potential energy and vice-versa.

These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following five reponses (a) If both Assertion and Reason arecorrect and Reason is the correct explanation of Asserrtion. (b) If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion. (c ) If Assertion is true but Reason is false. (d) If Assertion is false but Reason is true. Assertion If work done by conservative force is negative, then potential energy associated with that force should increase. Reason This is according to the relation DeltaU=-W Here, DeltaU is change in potential energy and W is work done by conservative force.

Assertion : On decreasing the distance between two masses potential energy increases. Reason : Potential energy U =(GMm)/(r) .

Conservative Force||Potential Energy Relations

Assertion: Frictional force are conservative forces. Reason: Potential energy change can be assorciated with frictional forces.

A2Z-WORK, ENERGY, POWER AND COLLISION-Potential Energy, Conservative And Non-Conservative Forces
  1. Which are the following is not a conservative force?

    Text Solution

    |

  2. Asseration : If work by done conservative forces is positive, kinetic...

    Text Solution

    |

  3. Work done by the conservative force on a system is equal to :

    Text Solution

    |

  4. Which of the following statement is correct ?

    Text Solution

    |

  5. A shell explodes and many pieces fly off in different directions. Whic...

    Text Solution

    |

  6. A bead x resting on a smooth horizontal surface is connected to two ad...

    Text Solution

    |

  7. Alex and john are loding adentical cabinates onto a truck .Alex lifts ...

    Text Solution

    |

  8. Mark and David are loading adentaical cement blocks on to David's pick...

    Text Solution

    |

  9. A pile driver drivers posts into the groubd the by repeatedly dropping...

    Text Solution

    |

  10. A Weight W suspeded from a spring is raised through a height h so that...

    Text Solution

    |

  11. If a compressed spring is dissolved in acid, what happens to the elast...

    Text Solution

    |

  12. If W(1), W(2) and W(3) represent the work done in moving a particle fr...

    Text Solution

    |

  13. An ice cube has been given a push and slides without friction on a lev...

    Text Solution

    |

  14. A long elastic spring is stretched by 2 cm and its potential energy is...

    Text Solution

    |

  15. A certain spring that obeys Hook's law is stretched by an external age...

    Text Solution

    |

  16. The work done by the external agent in stretching a spring of force co...

    Text Solution

    |

  17. A body of mass m is suspended from a massless spring of natural length...

    Text Solution

    |

  18. K is the force constant of a spring. The work done in increasing its e...

    Text Solution

    |

  19. An elastic spring of unstretched length L and force constant K is stre...

    Text Solution

    |

  20. A system comprises of two small spheres with the same masses m. Initia...

    Text Solution

    |