Which of the following is used in the treatment of cancer?

Correct option is B

The correct answer is (b) An isotope of cobalt.
· The isotope of cobalt used in the treatment of cancer is Cobalt-60. This radioactive isotope is widely used in radiotherapy to treat various forms of cancer by delivering high-energy gamma rays to target and destroy cancerous cells.
Information Booster:
· Cobalt-60 is used in external beam radiation treatments, commonly referred to as cobalt therapy.
· Iodine isotopes : Particularly Iodine-131, are used in the treatment of thyroid disorders, including thyroid cancer, but they are not used for general cancer treatments.
· Uranium isotopes : Are primarily used in nuclear power and weaponry, not for cancer treatment.