1. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

2. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

3. Who invented Gramophone ?

Answer:

Emile Berliner in 1887.

4. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

5. Who invented Radiocarbon ?

Answer:

Willard Libby

6. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

7. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.