scientist, discoveries & inventions MCQ section 3 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) Wright Brothers
(b) Edison
(c) Hoffman
(d) Stevenson
The correct answers to the above question in:
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 on December 17, 1903. From 1905 to 1907, the brothers developed their flying machine into the first practical fixed-wing aircraft.
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Read more scientist discoveries and inventions Based General Awareness Questions and Answers
Question : 1
Stephen Hawking is a
a) Scientist
b) American politician
c) Pianist
d) Guitarist
Answer »Answer: (a)
Question : 2
Who is associated with the invention of Nylon ?
a) Dr. Wallace H. Carothers
b) Louis Pasteur
c) John Corbutt
d) J. Nicephore Niepce
Answer »Answer: (b)
Wallace Hume Carothers was an American chemist, inventor and the leader of organic chemistry at DuPont, credited with the invention of nylon. He was a group leader at the DuPont Experimental Station laboratory, near Wilmington, Delaware, where most polymer research was done.
Question : 3
Radioactivity was discovered by
a) Einstein
b) Rutherford
c) Roentgen
d) Henri Becquerel
Answer »Answer: (d)
Antoine Henri Becquerel, a French physicist, was the discoverer of radioactivity along with Marie Sklodowska-Curie and Pierre Curie, for which all three won the 1903 Nobel Prize in Physics. Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability.
Question : 4
Name the branch of Zoology that deals with the scientific study of animal behaviour.
a) Anatomy
b) Ecology
c) Ethology
d) Physiology
Answer »Answer: (c)
Ethology is the scientific and objective study of animal behavior, usually with a focus on behavior under natural conditions. The term was first popularized by American myrmecologist (the study of ants) William Morton Wheeler in 1902.
Question : 5
Who discovered the first antibiotic ?
a) A Fleming
b) W Fleming
c) Louis Pasteur
d) C Waksman
Answer »Answer: (a)
Sir Alexander Fleming discovered the world’s first antibiotic— benzylpenicillin (Penicillin G)—from the mould Penicillium notatum in 1928. For this discovery, he shared the Nobel Prize in Physiology or Medicine in 1945 with Howard Florey and Ernst Boris Chain.
Question : 6
Who invented Radar?
a) A. H. Taylor and Leo C. Young
b) J. H. Van Tassel
c) P. T. Farnsworth
d) Wilhelm K. Roentgen
Answer »Answer: (a)
Radar is an object detection system that uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.
The radar dish or antenna transmits pulses of radio waves or microwaves which bounce off any object in their path.
In 1922 A. Hoyt Taylor and Leo C. Young, researchers working with the U.S. Navy invented Radar.
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