Home
Class 11
PHYSICS
Water is taken in a metal container and ...

Water is taken in a metal container and is heated at its bottom. The arrangement is placed in a freely falling elevator. Now the liquid is heated up by ________
a) Conduction
b) Convection
c) radiation

A

a, b, c

B

a, b only

C

b, c only

D

a only

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise EXERCISE-IB|68 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise EXERCISE-2|106 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Integer/Subjective Type Questions|2 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|99 Videos

  • THERMODYNAMICS

    AAKASH SERIES|Exercise EXERCISE - 3|33 Videos

Similar Questions

Explore conceptually related problems

A glass full of hot milk is poured on the table. It begins to cool gradually. Which of the following is correct? (a) The rate of cooling is constant till milk attains the temperature of the surrounding. (b) The temperature of milk faills off exponentially with time. ( c) While cooling, there is a flow of heat from milk to the surrounding as well as from surrounding to the milk but the net flow of heat is from milk to the surrounding and that is why it cools. (d) All three phenomenon, conduction, convection and radiation are responsible for the loss of heat from milk to the surroundings.

(A) : Convection involves flow of matter with in a fluid due to unequal temperatures of its parts ( R) : A hot bar placed under a running tap loses heat by conduction between the surface of bar and water and not by convection with in water.

Statement A convection involves flow of matter within a fluid due to unequal temperatures of its parts. Statements B A hot bar placed under a running tap water loses heat due to effect of convection with in water. Statement C Heat transfer always involves temperature different between two systems. Identify the correct option.

One end of a unifonn metal rod of length 100 cm is placed in ice and the other end is placed in boiling water. A point of the rod which is at a distance of 60 cm from the ice end is maintained at a constant temperature of 325^(@) C. If 2 g of water is converted into steam per second.-the mass of ice melted per second in steady state is (Latent heat of steam = 6.75 times latent heat of fusion of ice)

AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-IA
  1. The gas constant for a molecule is (terms have usual meaning) a) K ...

    Text Solution

    |

  2. The units of universal gas constant is a) Jmol^(-1)K^(-1) b) Jkg^(...

    Text Solution

    |

  3. A) Generally solids are better conductors than liquids B) Liquids ar...

    Text Solution

    |

  4. Water is taken in a metal container and is heated at its bottom. The a...

    Text Solution

    |

  5. For a good cooking vessel, the necessary characterstics are a) Large...

    Text Solution

    |

  6. A) Heat transfer by conduction & convection require a material medium ...

    Text Solution

    |

  7. A) A body of low Thermal capacity gets heated or cooled quickly B) G...

    Text Solution

    |

  8. Two identical conductors made of metals of coefficients of thermal con...

    Text Solution

    |

  9. A) A hot hollow sphere in vacuum cools by convection B) A hot solid ...

    Text Solution

    |

  10. A) Natural convection can take place in gravity free region B) Force...

    Text Solution

    |

  11. In a common room heating system, Statement (A): Hot water is circula...

    Text Solution

    |

  12. A) Polished surface is a poor absorber but good reflector B) Rough ...

    Text Solution

    |

  13. A spherical black body is of radius 'r'. Its radiating power is 'P' an...

    Text Solution

    |

  14. Statement (A) : Water can be boiled in a thin paper box without even c...

    Text Solution

    |

  15. A piece of charcoal and a piece of shining steel of the same area are ...

    Text Solution

    |

  16. A glass full of hot milk is poured on the table. It begins to cool gra...

    Text Solution

    |

  17. A glass full of hot milk is poured on the table. It begins to cool gra...

    Text Solution

    |

  18. In Newton's law of cooling, if the rates of emission of radiation by a...

    Text Solution

    |

  19. In which one of the following cases does the thermal conductivity incr...

    Text Solution

    |

  20. The thermal conductivites of copper, mercury and glass are respectivel...

    Text Solution

    |