Among the four options, three objects/things have same properties. Find the odd one out.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Radiation
Option (1) Confluence — the place where two rivers flow together and meet.
Option (2) Concourse — a crowd of people coming together, or the open hall where they gather.
Option (3) Concentration — the gathering together of things or attention at one centre.
Option (4) Radiation — energy spreading outward from a source in all directions. It is a moving apart, not a coming together, so radiation is the odd one out.