12th Class Physics Sample Paper Physics Sample Paper-7

  • question_answer
    Mohan and his younger brother Sohan were at the restaurant. It was very clean there. None of the flies and insects were there. His younger brother asked him about the fluorescent UV lamp present at the corner. Mohan explained the functioning of UV lamp. How flies and insects get trapped by it?
    (i) What are the values shown by Mohan?
    (ii) Give the source of UV-rays.


    (i) Mohan is aware of scientific knowledge and has clarity in explaining facts. He is also aware about health.
    (ii) UV-rays are produced by the sun and is trapped by ozone layer.

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