Achievements of Eminent Scientists NDA Questions

NDA BIOLOGY

Achievements of Eminent Scientists MCQ Questions


13.
Who discovered the link between electricity and magnetism ?
A.
Volta
B.
Maxwell
C.
Albert Einstein
D.
James Chadwick
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ANSWER :
B. Maxwell
14.
When was bar code scanners invented?
A.
1940
B.
1960
C.
1970
D.
1980
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ANSWER :
C. 1970
15.
Leprosy bacillus was invented by whom ?
A.
Hansen
B.
Koch
C.
J.J Thomson
D.
Karl Benz
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ANSWER :
B. Koch
16.
What Henry Bessemer invented?
A.
Radio
B.
Computers
C.
Steel converter
D.
Jet
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ANSWER :
C. Steel converter
17.
Gas engine was invented by
A.
Charles
B.
Daimler
C.
J.B Lamark
D.
Benjamin Franklin
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ANSWER :
B. Daimler
18.
Who invented Radar?
A.
A. H. Taylor
B.
Leo C. Young
C.
Both a and b
D.
Karl Benz
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ANSWER :
C. Both a and b