1. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented Proton ?

Answer:

Ernest Rutherford

4. Who invented Safety razor ?

Answer: King Camp Gillette of U.S.A. in 1903

5. Who invented Television ?

Answer:

John Logie Baird

6. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

7. Who invented Biochemistry ?

Answer: Jan Baptista Van Helmont of Belgium in 1648.