1. Who invented Optical Fibre ?

Answer:

Indian-born American physicist Narinder Kapany

2. Who invented Hydrogen bomb ?

Answer:

Edward Teller

3. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

4. Who invented Air Conditioning ?

Answer:

Willis Carrier in 1902

5. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

6. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

7. Who invented Transformer ?

Answer:

Ottó Bláthy