Home
Class 11
PHYSICS
The filament of a 60 watt electric light...

The filament of a 60 watt electric light bulb of diameter 0.06 mm runs at a temperature of 3000K. Assuming that it radiates as a black bodyy, loses no energy except as radiation and receives no energy except that supplied electrically, find the length of the filament

A

70 mm

B

60 mm

C

10 cm

D

80 mm

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL-II (LECTURE SHEET (ADVANCED)) Straight Objective Type Questions|6 Videos

  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL-II (LECTURE SHEET (ADVANCED)) More than One correct answer Type Questions|4 Videos

  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-II) Thermal Conduction (LEVEL-II) Integer Type Questions|2 Videos

  • TRANSMISSION OF HEAT

    AAKASH SERIES|Exercise QUESTION FOR DESCRIPTIVE ANSWER|4 Videos

  • UNITS AND MEASUREMENT

    AAKASH SERIES|Exercise Practice Exercise|45 Videos

Similar Questions

Explore conceptually related problems

A 100 watt bulb operates at 3000K. Assuming it loses energy only by radiation, the total surface area of the filament will be

An incandescent light bulb has a tungsten filament that is heated to a temperature 3xx10^(3)K when an electric current passes through it. If the surface area of the filament is approximately 10^(-4)m^(2) and it has an emissivity of 0.32, the power radiated by the bulb is

AAKASH SERIES-TRANSMISSION OF HEAT-ADDITIONAL PRACTICE EXERCISE (LEVEL-I (MAIN)) Straight Objective Type Questions
  1. In a 10 metre deep lake, the bottom is at a constant temperature of 4^...

    Text Solution

    |

  2. A and B are two points on a uniform metal ring whose centre is C. The ...

    Text Solution

    |

  3. Heat is flowing through two cylindrical rods of the same material. The...

    Text Solution

    |

  4. In natural convection, a heated portion of a liquid moves because

    Text Solution

    |

  5. It is hotter over top of the fire than at same distance on the sides d...

    Text Solution

    |

  6. Ventilation are provided at the top of room

    Text Solution

    |

  7. While measuring the thermal conductivity of a liquid we keep the upper...

    Text Solution

    |

  8. A slab of ice is one half covered with black cloth and the other half ...

    Text Solution

    |

  9. Two rods of same length and material transfer a given amount of heat i...

    Text Solution

    |

  10. Two rods of same length and areas of cross-section A(1) and A(2) have ...

    Text Solution

    |

  11. A body cools from 80^(0) C to 60^(0) C in 2 minutes. In how much time ...

    Text Solution

    |

  12. A 100 watt bulb operates at 3000K. Assuming it loses energy only by ra...

    Text Solution

    |

  13. The filament of a 60 watt electric light bulb of diameter 0.06 mm runs...

    Text Solution

    |

  14. A body with an initial temperature theta, is allowed to cool in a surr...

    Text Solution

    |

  15. A black body is at a temperature of 2880 K. The energy of radiation em...

    Text Solution

    |

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

    Text Solution

    |

  17. A planet is at an average distance d from the sun, and its average sur...

    Text Solution

    |

  18. The temperature of an isolated black body falls from T(1) to T(2) in t...

    Text Solution

    |

  19. A block of metal is heated to a temperature much higher than the room ...

    Text Solution

    |