Home
Class 11
PHYSICS
A large iceberg melts at the base but no...

A large iceberg melts at the base but not at the top because

A

the base of the iceberg remains in warmer surroundings

B

ice at base contains impurities

C

due to high pressure ice at the base lowers its melting point

D

ice at the top is different kind

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • COMPETITION CARE UNIT

    ICSE|Exercise INTERNAL ENERGY |40 Videos
  • COMPETITION CARE UNIT

    ICSE|Exercise THERMAL CONDUCTION |17 Videos
  • COMPETITION CARE UNIT

    ICSE|Exercise PROPERTIES OF MATTER (SURFACE TENSION ) |23 Videos
  • CIRCULAR MOTION

    ICSE|Exercise MODULE 2 (FROM ROTATIONAL KINETIC ENERGY , WORK ,POWER)|24 Videos
  • DIMENSIONS

    ICSE|Exercise SELECTED PROBLEMS (FROM CONVERSIONS OF ONE SYSTEMS OF UNITS INTO ANOTHER)|9 Videos

Similar Questions

Explore conceptually related problems

"Water is slightly warmer at the base of a water fall than at the top". Why?

An iceberg floats on fresh water with a part of it outside the water surface. Calculate the fraction of the volume of the iceberg which is below the water surface. Given : density of ice =917kgm^(-3) , density of fresh water =1000kgm^(-3)

The radius of the base of a cylindrical water-drum open at the top at the top is 35 cm and height 1.3m. Find the inner surface area of the water-drum.

The angle of elevation of the top of a vertical tower from two points distance a and b from the base and in the same line with it, are complimentary .If theta is the angle subtended at the top of the tower by the line joining these points then sin theta =

Martin wants to know how tall a certain flagpole is. Martin walks 10 meters from the flagpole, lies on the ground, and measures an angle of 70^@ from the ground to the base of the ball at the top of the flagpole. Approximately how tall is the flagpole from the ground to the base of the ball at the top of the flagpole?

Echinoderms are headless, brainless and heartless, Yet they are placed at the top of invertebrates because of presence of

A metallic hemisphere is melted and recast in the shape of a cone with the same base radius R as that of the hemisphere. If H is the height of the cone, then write the value of H//Rdot

The melting points of most of the solid substances increases with an increase of pressure acting on them However, ice melts at a temperature lower than its usual melting point, when the pressure increases. This is Because :

Cyclohexylamine is stronger base than aniline because

Aluminothermy used for the spot welding of large iron structures is based upon the fact that :

ICSE-COMPETITION CARE UNIT-PROPERTIES OF MATTER (CALORIMETRY, CHANGE OF STATE & KINETIC THEORY OF GASES )
  1. compared to burn due to air at 100^(@) a burn due to steam at 100^(@)C...

    Text Solution

    |

  2. Ratio of C(P) and C(v) depends upon temperature according to the follo...

    Text Solution

    |

  3. A large iceberg melts at the base but not at the top because

    Text Solution

    |

  4. The study of physical phenomenon at temperature below liquid nitrogen ...

    Text Solution

    |

  5. With rise in boiling point of water, the latent heat of steam

    Text Solution

    |

  6. Hygrometers are instruments for measuring

    Text Solution

    |

  7. For hydrogen gas C(p) - C(v) = a and for oxygen gas C(p) - C(v) = b. S...

    Text Solution

    |

  8. If water in a closed bottle is taken up to the moon and open, the wate...

    Text Solution

    |

  9. A lead ball moving with velocity v strikes a wall and stops. iF 50% of...

    Text Solution

    |

  10. if 1 g of system is mixed with 1 g of ice, then the resultant temperat...

    Text Solution

    |

  11. A gas at pressure p(0) is contained in a vessel. If the masses of all ...

    Text Solution

    |

  12. A sealed container with negligible thermal cofficient of expansion con...

    Text Solution

    |

  13. By what percentage should the pressure of a given mass of a gas be inc...

    Text Solution

    |

  14. The temperature of gas is produced by

    Text Solution

    |

  15. A polyatomic gas with n degrees of freedom has a mean energy per molec...

    Text Solution

    |

  16. If masses of all molecule of a gas are halved and their speed doubled ...

    Text Solution

    |

  17. The root mean square velocity of the gas molecule is 300 m/s. What wil...

    Text Solution

    |

  18. The mean translational K.E. per unit volume E and the pressure P of a ...

    Text Solution

    |

  19. A block of ice at -8^(@)C is slowly heated and converted to steam ...

    Text Solution

    |

  20. An ideal gas is initially at temperature T and volume V. ITS volume is...

    Text Solution

    |