General Knowledge : : Inventions Questions & Answers
- Who invented Dynamo?
A. John Napier
B. Johan Vaaler
C. J.E. Lundstrom
D. Hippolyte Pixii
- What Enrico Fermi invented?
A. X-ray machine
B. Betatron
C. Cyclotron
D. Nuclear reactor
- Who invented optical fibre?
A. Samuel Cohen
B. Narinder Singh Kapany
C. Percy L.Spencer
D. T.H. Maimah
- Who invented the laser?
A. Sir Frank Whittle
B. Fred Morrisson
C. T.H. Maiman
D. Dr. Charles H. Jones
- Who invented the Voice Mail?
A. Gordon Matthews
B. Alexander Graham Bell
C. J.A. Fleming
D. V. Poulsen