Home
Class 10
PHYSICS
Mention the purpose of blackening the in...

Mention the purpose of blackening the interior of a solar cooker.

Text Solution

Verified by Experts

Black surface absorbs more heat than a white and prevents heat loss.
Promotional Banner

Topper's Solved these Questions

  • SOURCES OF ENERGY

    OSWAAL PUBLICATION|Exercise TOPIC - 2 (ALTERNATIVE OR NON - CONVENTIONAL SOURCES OF ENERGY)(SHORT ANSWER TYPE QUESTIONS - I)|8 Videos

  • SOURCES OF ENERGY

    OSWAAL PUBLICATION|Exercise TOPIC - 2 (ALTERNATIVE OR NON - CONVENTIONAL SOURCES OF ENERGY)(SHORT ANSWER TYPE QUESTIONS - II)|21 Videos

  • SOURCES OF ENERGY

    OSWAAL PUBLICATION|Exercise TOPIC - 2 (ALTERNATIVE OR NON - CONVENTIONAL SOURCES OF ENERGY)(MATCH THE COLUMN)|1 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    OSWAAL PUBLICATION|Exercise TEXTBOOK EXERCISE|18 Videos

  • SSLC KARNATAKA TOPPERS' ANSWERS MARCH -2018

    OSWAAL PUBLICATION|Exercise QUESTION|10 Videos
OSWAAL PUBLICATION-SOURCES OF ENERGY-TOPIC - 2 (ALTERNATIVE OR NON - CONVENTIONAL SOURCES OF ENERGY)(VERY SHORT ANSWER TYPE QUESTIONS)
  1. Name the part of a biogas plant where reactions take place in the abse...

    Text Solution

    |

  2. Name any one material used to make a solar cell and also mention the r...

    Text Solution

    |

  3. A black surface absorbs more heat radiations as compared to a white su...

    Text Solution

    |

  4. List two forms of energy in which solar energy manifests itself in oce...

    Text Solution

    |

  5. Name any two elements that are used in fabricating solar cells.

    Text Solution

    |

  6. List any two advantages of using wind energy.

    Text Solution

    |

  7. List two indirect ways of using solar energy.

    Text Solution

    |

  8. Mention two different ways of harnessing energy from ocean.

    Text Solution

    |

  9. What should be the minimum wind speed to maintain the required speed o...

    Text Solution

    |

  10. Why is the outer surface of a solar cooker blackened?

    Text Solution

    |

  11. List any two limitations in harnessing wind energy.

    Text Solution

    |

  12. Why is a solar cooker painted black from outside ?

    Text Solution

    |

  13. Mention the main purpose of using a plane mirror in solar cookers.

    Text Solution

    |

  14. Mention the purpose of blackening the interior of a solar cooker.

    Text Solution

    |

  15. Mention any one reason due to which most of the thermal power plants a...

    Text Solution

    |

  16. State the transformation of energy taking place in a solar cell panel.

    Text Solution

    |

  17. Compare the energy produced during fission of a uranium atom with the ...

    Text Solution

    |

  18. State the necessary conditions to operate an ocean thermal energy conv...

    Text Solution

    |

  19. Windmill works with the energy of the blowing wind. Then, how is the s...

    Text Solution

    |

  20. Why are black surfaces, and not the white surfaces, used for making so...

    Text Solution

    |