Home
Class 10
PHYSICS
There was some construction work going o...

There was some construction work going on in the neighbourhood of Amar Singh. One day when Amar Singh came back form his office, he saw his ten year old son standing near the welder and looking at the electric welding being done with great curiosity. Amar Singh grabbed his son by the arm and brought him inside the house quickly. He firmly told his son not to look at electric welding being done again because it is extremely harmful. Amar Singh then went out and scolded the welder for allowing a child to stand near him and watch the electric welding being done. The welder said 'sorry' to Amar Singh for the lapse on his part.
(a) Why did Amar sing bring his son inside the house quickly ?
(b) What harm could have been done to the child by staring at the electric welding and Why ?
(c) Name a natural luminous object which can do the same damage when looked at straight with naked eye for a considerable time.
(d) What other harm could have been done to the child by standing near the welder when electric welding was being done ?
(e) What value are exhibited by Amar Singh in this episode ?

Text Solution

Verified by Experts

(a) Amar Singh brought his son inside the house quickly to protect his son from damage to his eyes and possible burns.
(b) Electric welding produces enormously bright light. This extremely bright light could have damaged the retina of the eye.
(c) The sun is also an extremely bright object in the sky which can damage the retina of eyes if looked at straight with naked eyes for a considerable time.
(d) The electric welding produces sparks which fly off an all directions. The extremely hot sparks of electric welding could cause burns on the body of the child standing nearby.
(e) Amar Singh exhibited the values of (i) Awareness (that electric welding can damage the eyes and also cause burns) (ii) Concern for his son (to protect his eyes and prevent burns), and (iii) Teach lesson to wrong doer (by scolding the welder).
Promotional Banner

Topper's Solved these Questions

  • THE HUMAN EYE AND THE COLOURFUL WORLD

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT Book|14 Videos
  • TEST PAPER 4

    LAKHMIR SINGH & MANJIT KAUR|Exercise SECTION A|10 Videos
LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Velue Based Questions
  1. Vaibhav had gone to his uncle's home in a foreign country where the do...

    Text Solution

    |

  2. Farid was given two thin wires X and Y in the science laboratory. The ...

    Text Solution

    |

  3. Mr. Dogra lives in a very old house. The electric wiring in this house...

    Text Solution

    |

  4. Vinod went to his ancestral village alongwith his father during the su...

    Text Solution

    |

  5. Dinesh is a student of 10th standard. He went to a remote area of Raja...

    Text Solution

    |

  6. Simranjit studies in tenth class in a school. There are fifty students...

    Text Solution

    |

  7. Mr. Firoze is a retired man who lives in a big house. He has recently ...

    Text Solution

    |

  8. Benny's mother was finding it difficult to cook food in the kitchen th...

    Text Solution

    |

  9. Sanjay was going to his office in his car. While driving his car, Sanj...

    Text Solution

    |

  10. Manoj is a twelve year old boy. He obtained a lens from one of his fri...

    Text Solution

    |

  11. Anahat is an eight year old girl who has just begun to learn swimming....

    Text Solution

    |

  12. Seema's father Mr. Soni runs a cosmetics and perfumes shop in a crowde...

    Text Solution

    |

  13. It was a bright, sunny day in the morning when the classes started in ...

    Text Solution

    |

  14. Mr. Vinay's 65 years old mother is complaining about blurred vision in...

    Text Solution

    |

  15. Vasantha is a domestic help (or maid) working at Mrs. Sharma's home. O...

    Text Solution

    |

  16. There was some construction work going on in the neighbourhood of Amar...

    Text Solution

    |

  17. Sunny Dayal is a car driver working for Mr. Khanna. One day Sunny Daya...

    Text Solution

    |

  18. A social worker was addressing people at an eye donation camp organise...

    Text Solution

    |

  19. Pavni's mother had just washed all the white clothes. She was telling ...

    Text Solution

    |

  20. Sona was standing outside her house in the afternoon enjoying the ligh...

    Text Solution

    |