12th Class Physics Sample Paper Physics Sample Paper-4

  • question_answer
    Lakshmi, Seema's domestic helper was complaining for few days about the ill health of his son Lakshman. After conversing with Lakshmi, Seema came to know that Lakshman is a regular worker in a nuclear power plant. Since, Lakshmi was ignorant about the nuclear radiation caused in nuclear power plant which causes occupational hazard and finally convinced her to get Lakshman admitted in hospital and start treatment.
    Read the above passage and answer the following questions
    (i) Which possible reasons were responsible for deterioration of Lakshman's health? Write any one characteristic of such radiation.
    (ii) Write any two values that reflected in Seema's advice.


    (i) Radioactive radiation emitted by the nuclear fuels in the nuclear plant were affecting the functioning of body organs of Lakshman.
    These radiations are (a) highly penetrating and can damage living tissues (b) capable of affecting photographic plates and cause ionisation.
    (ii) Scientific awareness and concern for Lakshman's health.

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