1. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

2. Who invented c language

Answer:

Dennis Ritchie

3. Who invented Telescope ?

Answer: Hans Lippershey of Netherlands in 1608.

4. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888

5. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

6. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.