1. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

2. Who invented Vitamin A ?

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

3. Who invented Transformer ?

Answer:

Ottó Bláthy

4. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

5. Who invented Neon Lamp ?

Answer:

Georges Claude who was a French engineer, chemist and inventor

6. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

7. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.