The change that is undergone by an atom of an element made radioactive by bombardment with high-energy protons is called(1) natural transmutation(2) artificial transmutation(3) natural decay(4) radioactive decay

The correct answer is Option 2.

Explanation:

Natural transmutation is defined as the decay process of the radioactive elements which occur spontaneously by a process that causes transmutation.

Artificial transmutation is defined as the process where artificially induced nuclear reaction is done by the bombardment of nucleus with high energy particles on a radioactive element. It is a spontaneous reaction.

Natural decay or radioactive decay are the processes in which a nucleus disintegrates spontaneously on its own. There are many processes by which this decay takes place.

Hence, the correct answer is Option 2.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.