1. Who invented Vitamin K ?

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

2. Who invented Hydrogen bomb ?

Answer:

Edward Teller

3. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913

4. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

5. Who invented Piano ?

Answer:

Bartolomeo Cristofori

6. Who invented Java Language ?

Answer:

James Gosling

7. Who invented Transistor ?

Answer: Bardeen, Shockley & Britain of U.S.A. in 1948