Home
Class 12
PHYSICS
Lubrication reduces friction because...

Lubrication reduces friction because

A

Lubricant molecules act as ball bearings

B

Laws of limiting friction are not applicable

C

The relative motion in between solid and liquid

D

Both 1 and 3

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    AAKASH SERIES|Exercise EXERCISE - II|136 Videos

  • LAWS OF MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|106 Videos

  • LAWS OF MOTION

    AAKASH SERIES|Exercise Application|6 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL-II PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|10 Videos

  • LOGIC GATES

    AAKASH SERIES|Exercise Exercise (Very Short Answer)|10 Videos

Similar Questions

Explore conceptually related problems

Explain how lubricants help in reducing friction ?

Which part of a bone reduces friction at joints and which produces blood cells?

Use of CNG instead of diesel reduces air pollution because

Excessively high hear rate ( gt 180 ) can reduce cardiac output because

A pressure cooker reduces cooking time because

Chromosome number is reduced during meiosis because the process consists of :-

(a) Write rules of friction. Friction force decreases in ball bearings because balls are spherical. Does it mean frictional force depend upon area ? Explain.

Consider the following statements A) Angle of repose is equal to angle of friction B) Angle of friction is independent of coefficient of friction

Alkali metals are strong reducing agents because

Graphite is used as a lubricant because it is

AAKASH SERIES-LAWS OF MOTION-EXERCISE - I
  1. The limiting friction between two bodies in contact is independent of

    Text Solution

    |

  2. (A) : When external force acting on a body moving on a rough horizonta...

    Text Solution

    |

  3. Lubrication reduces friction because

    Text Solution

    |

  4. A cyclist pedals the cycle for some time and then stops peddling, then

    Text Solution

    |

  5. The limiting friction between two surfaces depends

    Text Solution

    |

  6. A block 'B' rests on 'A'. A rests on a horizontal surface 'C which is ...

    Text Solution

    |

  7. To keep a particle moving with constant velocity on a frictionless hor...

    Text Solution

    |

  8. Frictional force between two bodies

    Text Solution

    |

  9. If man is walking, direction of friction is

    Text Solution

    |

  10. On a frictionless horizontal surface , assumed to be the x-y plane ,...

    Text Solution

    |

  11. Car tyres are made of rubber and not of iron because

    Text Solution

    |

  12. Aeroplanes are streamlined to reduce

    Text Solution

    |

  13. It is easier to pull a lawn roller than to push it because pulling

    Text Solution

    |

  14. A uniform rope of length l lies on a table . If the coefficient of fri...

    Text Solution

    |

  15. In case of pulling & pushing minimum forces required (w sin alpha)/(co...

    Text Solution

    |

  16. A body is moving in a circular orbit. It is just about to slide to the...

    Text Solution

    |

  17. Adjoining figure shows two blocks A and B pushed against the wall with...

    Text Solution

    |

  18. A body is just supported at the face of a cart moving at an accelerati...

    Text Solution

    |

  19. A wooden block sliding down from the top of a smooth inclined plane st...

    Text Solution

    |

  20. The angle which the rough inclined plane makes with the horizontal whe...

    Text Solution

    |