Question

How the forms of currency have change over the year?why modern currency is use a medium of exchange without any use of its own.

Answer 1

it changes after interval bcoz some people collect and use it recklessly and forms their bank account in swiss bank as black money
money can be paper notes and metal coins so they don't have any use of its own but as it is authorised by r.b.i. anyone can not refuse to accept it

Answer 2

Modern currency is accepted as a medium of exchange because it is authorized by the central government of a country. 2. In India, RBI issues the currency notes and it is illegal for any other organization or individual to issue the currency.