For the past some time, Aarti had been observing some erratic body movement
Channel: Doubtnut
Date: 2020-04-12

For the past some time, Aarti had been observing some erratic body movement, unsteadiness and lack of coordination in the activites of her sister Radha, who also used to complain of severe headache occasionally. Aarti suggested to her parents to get a medical check-up Radha The doctor thoroughly exmined Radha and diagnosed that she has a brain tumour.   (a) What, according to you, are the values displayed by Aarti?   (b) How can radioisotope help a doctor to diagnose brain tumour?