scientist, discoveries & inventions MCQ section 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general awareness mcq - 4 EXERCISES
The following question based on scientist, discoveries & inventions topic of general awareness mcq
(a) Martin Cooper
(b) Linus Torvalds
(c) Fred Morrison
(d) Percy Lebaron Spencer
The correct answers to the above question in:
Answer: (a)
Martin Cooper (born December 26, 1928, in Chicago, Illinois, USA) is an American former Motorola vice president and division manager who in the 1970s led the team that developed the handheld mobile phone (as distinct from the car phone).
Cooper was also the CEO and founder of ArrayComm, a company that works on smart antenna technology and wireless networks, and was the corporate director of Research and Development for Motorola.
In 1973, when Motorola installed a base station to handle the first public demonstration of a phone call over the cellular network, the company was trying to persuade the Federal Communications Commission to allocate frequency space to private companies for use in the emerging technology of cellular communications.
After some initial testing in Washington for the F.C.C., John F. Mitchell and his team, which included Martin Cooper, took the cellular phone technology to New York to demonstrate it to reporters and the public.
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Read more scientist discoveries and inventions Based General Awareness Questions and Answers
Question : 1
Who invented aeroplane ?
a) Wright Brothers
b) Edison
c) Hoffman
d) Stevenson
Answer »Answer: (a)
The Wright brothers, Orville and Wilbur, were two American brothers, who are credited with inventing and building the world's first successful airplane and making the first controlled, powered and sustained heavier-than-air human flight in December 1903. They surpassed their own milestone in 1905 when they built and flew the first fully practical airplane.
Question : 2
Who is the discoverer of Penicillin?
a) Christopher Macdonald
b) Albert Einstein
c) Alexander Graham Bell
d) Alexander Fleming
Answer »Answer: (d)
Question : 3
Leprosy bacillus was invented by
a) Harvey
b) Koch
c) Fleming
d) Hansen
Answer »Answer: (b)
Mycobacteriumleprae, the causative agent of leprosy, was discovered by G. H. Armauer Hansen in Norway in 1873. Hansen observed a number of non-refractile small rods in unstained tissue sections.
The rods were not soluble in potassium lye, and they were acid- and alcohol-fast. In 1879, he was able to stain these organisms with Ziehl’s method and the similarities with Koch’s bacillus (Mycobacterium tuberculosis) were noted.
Question : 4
Which one of the following pairs is not correctly matched?
a) J.L. Baird - Television
b) J. Perkins - Penicillin
c) James Watt - Steam Engine
d) A.G. Bell - Telephone
Answer »Answer: (b)
Question : 5
Who discovered electromagnetic nature of light ?
a) Young
b) Snell
c) Maxwell
d) Newton
Answer »Answer: (c)
A theory of electromagnetism was developed by various physicists over the course of the 19th century, culminating in the work of James Clerk Maxwell, who unified the preceding developments into a single theory and discovered the electromagnetic nature of light. In classical electromagnetism, the electromagnetic field obeys a set of equations known as Maxwell’s equations.
Question : 6
Homi Bhabha Award is given for special contribution in the field of
a) Laser Physics
b) Space Research
c) Theoretical Physics
d) Nuclear Energy
Answer »Answer: (d)
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