Home
Class 12
PHYSICS
A liquid does not wet the solid surface ...

A liquid does not wet the solid surface if the angle of contact is

A

zero

B

Equal to `45^@`

C

Equal to `90^@`

D

Greater than `90^@`

Text Solution

Verified by Experts

The correct Answer is:
D

If the angle of contacxt is greater than `90^@` then the cohesive forces are greater than the adhesive forces.
As a result, liquid doesn't wet the solid.
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM

    SIA PUBLICATION|Exercise PROBLEMS|88 Videos
  • MOCK TEST 1

    SIA PUBLICATION|Exercise PHYSICS|27 Videos

Similar Questions

Explore conceptually related problems

What is angle of contact?

Two parallel glass plates are dipped perpendicularly in a liquid of density rho . The separation between the plates is ‘d' and the surface tension T. The angle of contact of glass is theta . The capillary rise of the liquid between the plates is

SIA PUBLICATION-MECHANICAL PROPERTIES OF SOLIDS AND FLUIDS-M.C.Q.
  1. There is some change in length when a 33000 N tensile force is applied...

    Text Solution

    |

  2. When a wire of length 10 m is subjected to a force of 100 N along its ...

    Text Solution

    |

  3. A liquid does not wet the solid surface if the angle of contact is

    Text Solution

    |

  4. A horizontal pipe of non-uniform cross-section allows water to flow th...

    Text Solution

    |

  5. Two gases A and B having same pressure p, volume V and absolute temper...

    Text Solution

    |

  6. Assertion (A) Ductile metals are used to prepare thin wires. Reason (R...

    Text Solution

    |

  7. Two soap bubbles combine to form a single bubble. In this process, the...

    Text Solution

    |

  8. An air bubble of radius 1 cm rises from the bottom portion through a l...

    Text Solution

    |

  9. Two blocks of masses 1 kg and 2 kg are connected by a metal wire going...

    Text Solution

    |

  10. The radii and Young's moduli of two uniform wires A and B are in the r...

    Text Solution

    |

  11. The heal evolved for the rise of water when one cnd of the capillary t...

    Text Solution

    |

  12. An iron sphere of mass 20xx10^-3kg falls through a viscous liquid wit...

    Text Solution

    |

  13. The relation between the coefficient of real expansion (gammar) and co...

    Text Solution

    |

  14. The difference between volume and pressure coefficients of an ideal ga...

    Text Solution

    |

  15. The tyre of a motor car contains air at 15^@C. If the temperature incr...

    Text Solution

    |

  16. A metallic ring of radius r and cross-sectional area A is fitted into ...

    Text Solution

    |

  17. One end ofauniform glass capillary tube of radius r = 0.025 cm is imm...

    Text Solution

    |

  18. Water in a river 20 m deep is flowing at a speed of 10 ms^-1. The shea...

    Text Solution

    |

  19. There are two holes one each along the opposite sides of a wide rectan...

    Text Solution

    |

  20. Two identical vessels A and B with frictionless pistons contain the sa...

    Text Solution

    |