PHYSICS 10 SCIENCE · 2026–27 · Q1 · 12 MCQs · 12 marks · p. iii

Printed textbook model paper

Which listed isotope is used in medical treatment and as a radioactive tracer?

درج ہم جاء میں طبی علاج اور تابکار ٹریسر کے استعمال سے کون سا متعلق ہے؟

  1. (a)

    Strontium-90

    اسٹرونشیم90

  2. (b)

    Polonium-210

    پولونیم210

  3. (c)

    Cobalt-60

    کوبالٹ60

  4. (d)

    Radon-222

    ریڈون222

Solution & explanation

Correct choice(s): (c)

(c) Cobalt-60 is the intended choice, particularly its gamma use in radiotherapy. Medical tracer selection depends on the procedure; this wording should not be generalized to say Co-60 is the usual tracer for every scan.

Independent study material · English-medium textbook p. iii · Original book ↗