Home
Class 12
PHYSICS
In winter why do bird sits with wings sp...

In winter why do bird sits with wings spread out ?

Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER (HEAT PHENOMENA)

    MBD PUBLICATION|Exercise QUESTION BANK|232 Videos
  • THERMODYNAMICS

    MBD PUBLICATION|Exercise QUESTION BANK|338 Videos

Similar Questions

Explore conceptually related problems

Why do clocks not keep correct time in summer and winter ? Why is Invar used in making clock pendulum ?

Why do soaps not work in hard water?

Why do some metals occur in the native state ?

MBD PUBLICATION-THERMAL PROPERTIES OF MATTER (HEAT TRANSFER)-QUESTION BANK
  1. Why do two layers of cloth of equal thickness provide warmer covering ...

    Text Solution

    |

  2. Two thermometers are constructed in the same way expect that one has a...

    Text Solution

    |

  3. In winter why do bird sits with wings spread out ?

    Text Solution

    |

  4. Why are woollen clothes warmer then cotton ?

    Text Solution

    |

  5. A blanket which keeps us warm in the winter is able to protect ice fro...

    Text Solution

    |

  6. can we boil water inside an earth satellite by convection ?

    Text Solution

    |

  7. On a winter night you feel warmer when clouds cover the sky than when ...

    Text Solution

    |

  8. When a hot body warms a cool one are their temperature changes equal i...

    Text Solution

    |

  9. Two persons ordered tea in a restaurant and waited his a friend to arr...

    Text Solution

    |

  10. Air and wood are bad conductors of heat. The heat emitted by hot body ...

    Text Solution

    |

  11. A solid sphere of copper of radius R and a hollow aphere of the same ...

    Text Solution

    |

  12. The top of lake is frozen. Air in contact is at -15^@ C What do you ex...

    Text Solution

    |

  13. The top of lake is frozen. Air in contact is at -15^@ C What do you ex...

    Text Solution

    |

  14. Ratio of coefficient of thermal conductivity of two different material...

    Text Solution

    |

  15. what is the mode of heat transfer applied o solids.

    Text Solution

    |

  16. Name the only liquid which is a good conductor of heat.

    Text Solution

    |

  17. What is the dimensional formula of co-efficient of thermal conductivit...

    Text Solution

    |

  18. Are good absorber good emitters ?

    Text Solution

    |

  19. Are good reflectors poor emitters ?

    Text Solution

    |

  20. When a green glass heated to high temperature what it will glow ?

    Text Solution

    |