Home
Class 8
CHEMISTRY
What is LED ? How it is useful as tester...

What is LED ? How it is useful as tester ?

Promotional Banner

Topper's Solved these Questions

  • COMBUSTION , FUELS AND FLAME

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|139 Videos

  • METALS AND NON-METALS

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|222 Videos

Similar Questions

Explore conceptually related problems

What is PHBV ? How is it useful to man ?

What is coke?How is it useful to us?

What is a synapse ? How is it useful in transfer of information ?

What is a synapse? How is it useful in transfer of information?

What is coal tar? How is it useful to us?

What is a herbarium? How is it useful to us?

What is seed drill ? How is it useful ?

How is soil useful for us ?

What is cephalization ? How is it useful to its possessors?

VGS PUBLICATION-BRILLIANT-ELECTRICAL CONDUCTIVITY OF LIQUIDS-EXERCISE
  1. In terms of band theory , what is the difference between a conductor a...

    Text Solution

    |

  2. Is it safe for electrician to carry out electrical repairs outdoor dur...

    Text Solution

    |

  3. What is LED ? How it is useful as tester ?

    Text Solution

    |

  4. When the free ends of a tester are dipped into a solution, the magneti...

    Text Solution

    |

  5. tap water conduct electricity where as distilled water does not why?

    Text Solution

    |

  6. What are the drawbacks of electroplating?

    Text Solution

    |

  7. tap water conduct electricity where as distilled water does not why?

    Text Solution

    |

  8. A child staying in a coastal region tests the drinking water and also ...

    Text Solution

    |

  9. Prepare a table of various metals and non-metals used in our daily lif...

    Text Solution

    |

  10. What are the uses of electrolysis in daily life?

    Text Solution

    |

  11. What do you add to distilled water for making it to conduct electricit...

    Text Solution

    |

  12. How do you appreciate the efforts of Luigi Galvani and Alissandro Volt...

    Text Solution

    |

  13. Test the conductivity of liquids given below and fill the table.(table...

    Text Solution

    |

  14. Why is chromium used for electroplating ? Why are the objects which ar...

    Text Solution

    |

  15. Write some chemical equation occurring in our daily life.

    Text Solution

    |

  16. If bulb does not glow with the passage of current, what are possible r...

    Text Solution

    |

  17. Name the process of coating a metal on another metal. Draw a rat diagr...

    Text Solution

    |

  18. Draw a diagram shows electroplating process. Write any one of the requ...

    Text Solution

    |

  19. is called blue vitrol.

    Text Solution

    |

  20. cell does not have any liquid.

    Text Solution

    |