Home
Class 11
PHYSICS
Why it is more hotter for same distance ...

Why it is more hotter for same distance over the top of a candle than it in the side of its flame

A

Air conducts heat upwards

B

Heat is radiated upwards

C

Convection takes more heat upwards

D

Convection, conduction and radiation all contribute significantly transferring heat upwards

Text Solution

Verified by Experts

The correct Answer is:
C

Convection significantly transfers heat upwards due to gravity effect.
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    ERRORLESS|Exercise Assertion & Reason|22 Videos
  • TRANSMISSION OF HEAT

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Radiation (Newton.s Law of Cooling))|11 Videos
  • THERMOMETRY, THERMAL EXPANSION AND CALORIMETRY

    ERRORLESS|Exercise ASSERTION & REASON|10 Videos
  • UNITS, DIMENSIONS AND MEASUREMENT

    ERRORLESS|Exercise ASSERTION & REASON |17 Videos

Similar Questions

Explore conceptually related problems

Why is it hotter at the same distance over the top of a fire than in front of it?

Assertion It is hotter over the top of a fire than at the same distance on the sides . Reason In the upwared direction , the heat propagate through convection.

Assertion : It is hotter over the top of a fire than at the same distacne of the side. Reason : Air surrounding the fire conducts more heat upward

Why it is cooler at the top of a mountain than at sea level?

Assertion: Air above the fire at some distance is hotter than the air below it at the same distance. Reason: Air surrounding the fire carries more heat upwards than downwards.

Why a liquid boils at a lower tempetature at the top of a mountain than at sea level ?

ERRORLESS-TRANSMISSION OF HEAT -PAST YEARS QUESTIONS
  1. The two ends of a metal rod are maintained at temperatures 100^(@)C an...

    Text Solution

    |

  2. The two ends of a rod of length L and a uniform cross-sectional area A...

    Text Solution

    |

  3. Two rods A and B are of equal lengths. Their ends of kept between the ...

    Text Solution

    |

  4. A metal plate 4 mm thick has a temperature difference of 32^@C between...

    Text Solution

    |

  5. Two identical bodies are made of a material for which the heat capacit...

    Text Solution

    |

  6. Two rods A and B of different materials are welded together as shown i...

    Text Solution

    |

  7. Why it is more hotter for same distance over the top of a candle than ...

    Text Solution

    |

  8. The layers of atmosphere are heated through

    Text Solution

    |

  9. Three objects coloured black, gray and white can withstand hostile con...

    Text Solution

    |

  10. A black platinum wire, when heated, first appears dull red, then yello...

    Text Solution

    |

  11. Shown below are the black body radiation curves at temperature T(1) an...

    Text Solution

    |

  12. Flash light equipped with a new set of batteries, produces bright whit...

    Text Solution

    |

  13. A black body is at a temperature of 5760 K. The energy of radiation em...

    Text Solution

    |

  14. The amount of radiation emitted by a perfectly black body is proportio...

    Text Solution

    |

  15. A black body is at a temperature 300 K. It emits energy at a rate, whi...

    Text Solution

    |

  16. Suppose the sun expands so that its radius becomes 100 times its prese...

    Text Solution

    |

  17. A black body radiates 20 W at temperature 227^(@)C. If temperature of ...

    Text Solution

    |

  18. A spherical black body with a radius of 12 cm radiates 450 watt power ...

    Text Solution

    |

  19. The power radiated by a black body is P, and it radiates maximum energ...

    Text Solution

    |

  20. A body cools from a temperature 3 T to 2 T in 10 minutes. The room tem...

    Text Solution

    |