Question

Aunique discovery of modern technology in 20th century is Ka answer

Answer 1

Answer:

"A unique discovery of modern technology in the 20th century is Photograph

Photograph technology is a better technology that communicates the news very easier and reaches the audience faster than written notice.

We can check so many apps and gadgets in the 20th century.

Television plays a major role in entertainment and newspaper plays a major role in education and books are also responsible for the awareness of social activities. All these are possible with real photographs.