1. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

2. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

3. Who invented Super Computer ?

Answer:

Seymour Cray

4. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

5. Who invented HIV ?

Answer:

6. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

7. Who invented Open Heart Surgery ?

Answer:

Dr. Daniel Hale Williams