Home
Class 11
PHYSICS
A good lubricant should have ………….. ....

A good lubricant should have ………….. .

A

high viscosity

B

low viscosity

C

moderate viscosity

D

high density

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF MATTER

    FULL MARKS|Exercise Additional Questions Solved - 2 - Mark Questions|20 Videos

  • PROPERTIES OF MATTER

    FULL MARKS|Exercise Additional Questions Solved - Numerical Questions|19 Videos

  • PROPERTIES OF MATTER

    FULL MARKS|Exercise Textual Evaluation Solved - Conceptual Questions|5 Videos

  • OSCILLATIONS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (IV NUMERICAL PROBLEMS )|10 Videos

  • SAMPLE PAPER - 2

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

The ferromagnetic core of electromagnets should have

Permanent magnets should have

Justify that the fifth period of the periodic table should have 18 elements on the basis of quantum numbers.

To get three images of a single obiect, one should have two plane mirror at an angle of

State whether the ''Or'' used in the following statements is ''exclusive ''or'' inclusive. Give reasons for your answer. To apply for a driving licence, you should have a ration card or a passport.

In a magic square given below each row, column and diagonal should have the same sum. Find the values of x,y and z.

True or False : All the elements of a relation should have images.

Which of the following should have maximum value for k_H ?

FULL MARKS-PROPERTIES OF MATTER-Additional Questions Solved - Choose the Correct Answers
  1. If temperature rises, the coefficient of viscosity of a liquid ……….. .

    Text Solution

    |

  2. The velocity of a rain drop attains constant value because of ………….. .

    Text Solution

    |

  3. With an increase in temperature, the viscosity of liquid and gas, resp...

    Text Solution

    |

  4. Two small spheres of radii r and 2r fall through a viscous liquid with...

    Text Solution

    |

  5. Viscosity is the property of liquids by virtue of which they ………….. .

    Text Solution

    |

  6. Streamlined flow is more likely for liquids with ………….. .

    Text Solution

    |

  7. The dimensional formula of coefficient of viscosity is …………… .

    Text Solution

    |

  8. A good lubricant should have ………….. .

    Text Solution

    |

  9. If a liquid wets a solid surface, the angle of contact is …………. .

    Text Solution

    |

  10. When some detergent is added to water, the surface tension …………… .

    Text Solution

    |

  11. Rain drops are spherical because of ………….. .

    Text Solution

    |

  12. At critical temperature the surface tension of a liquid ………….. .

    Text Solution

    |

  13. A liquid will not wet the surface of a solid if the angle of contact i...

    Text Solution

    |

  14. The surface tensions of soap solution is 25 xx 10^(-3) Nm^(-1). The ex...

    Text Solution

    |

  15. Surface tension does not depends on ……… .

    Text Solution

    |

  16. Meniscus of mercury in a capillary is ………………. .

    Text Solution

    |

  17. The potential energy of a molecule on the surface of a liquid compared...

    Text Solution

    |

  18. At which of the following temperatures, the value of surface tension o...

    Text Solution

    |

  19. If the surface tension of water is 0.06 Nm^(-1), then the capillary ri...

    Text Solution

    |

  20. The surface tension phenomenon is the result of the tendency of a syst...

    Text Solution

    |