Among the four options, three objects/things have same properties. Find the odd one out.
Answer & explanation
Correct answer: option 4
Radiation shows the property of spreading while the rest three shows concentration at a point.
| [1]Confluence→The place where two rivers meet. |
| [2] Concourse→Open part of a building. |
| [3] Radiation →Sending out the rays. |
| [4] Concentration →a large hall or space inside a building such as a station or an airport |