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Free download PDF of Discoveries & Inventions general awareness multiple choice questions(MCQs) and answers. These general awareness quiz objective questions answers include mcqs on gunpowder, leprosy bacillus, web browser etc.
(41)
Leprosy bacillus was invented by
[A]
Hansen
[B]
Fleming
[C]
Koch
[D]
Harvey
Comment
(42)
Electron microscope was discovered by
[A]
Knoll and Ruska
[B]
Janseen and Janseen
[C]
Garhn and Shortt
[D]
Farmer and Moore
Comment
(43)
Who was the leader of the term that developed the ‘Web Browser’ known as Mosaic?
[A]
Bob Kahn
[B]
Marc Andreessen
[C]
Tim Berners-Lee
[D]
Paul Mockapetris
Comment
(44)
Who discovered Solar System?
[A]
Galileo
[B]
Copernicus
[C]
John Hadley
[D]
Newton
Comment
(45)
Meteorology is the science of:
[A]
Earthquakes
[B]
Metals
[C]
Mateors
[D]
Weather
Comment
(46)
Which scientist discovered the radioactive element Radium?
[A]
Marie Curie
[B]
Albert Einstein
[C]
Isaac Newton
[D]
Benjamin Franklin
Comment
(47)
An instrument used to measure the density of milk is
[A]
Glactometer
[B]
Lactometer
[C]
Polari meter
[D]
Calciometer
Comment
(48)
Radioactivity was discovered by
[A]
Einstein
[B]
Roentgen
[C]
Henri Becquerel
[D]
Rutherford
Comment
(49)
Gunpowder was invented by
[A]
Dr. Gatting
[B]
C.V. Raman
[C]
Colt
[D]
Roger Bacon
Comment
(50)
Who invented the video-tape?
[A]
Charles Ginsberg
[B]
P. T. Farnsworth
[C]
Richard James
[D]
Georges de Mestral
Comment
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