1. Who invented Vitamin K ?

Answer: Doisy Dam of U.S.A. in 1938.

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

4. Who invented Television ?

Answer:

John Logie Baird

5. Who invented Automatic rifle ?

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

6. Who invented Super Computer ?

Answer:

Seymour Cray

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.