1. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented Vitamin A ?

Answer: Mc Collum and M.Davis of U.S.A. in 1913

4. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

5. Who invented Submarine ?

Answer:

John Philip Holland

6. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

7. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table