Question

what does interchanging means?​

Answer 1

Answer:

verb (used with object), in·ter·changed, in·ter·chang·ing. to put each in the place of the other: to interchange pieces of modular furniture. to cause (one thing) to change places with another; transpose. to give and receive (things) reciprocally; exchange: The twins interchanged clothes frequently.

Answer 2

$\bf\mathtt\blue{AnSWer:-}$

It simply means the change of the position of obj a in place obj b and vice versa