Question

When potassium is added to water, it is seen that the lower region becomes warm first and becomes less dense. It then moves up and the more dense cold water comes down and the process goes on. What is the process taking place?

(a) Radiation

(b) Conduction

(c) Convection

(d) Purification

Answer 1

The correct option is (c) Convection

The explanation: Convection is the process in which heat is transmitted from hotter end to colder end by actual movement of heated particles. Since the particles are actually moving in the above process, it is convention.