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Q:

Bacteria was discovered by

A) Antonie van Leeuwenhoek B) Belarus
C) Hugo de Vries D) Robert Brown
 
Answer & Explanation Answer: A) Antonie van Leeuwenhoek

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Q:

Who invented bluetooth?

A) Kirkpatrick Macmillan B) Benjamin Franklin
C) Dr. Jaap Haartsen D) Charles Babbage
 
Answer & Explanation Answer: C) Dr. Jaap Haartsen

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Q:

Who discovered electron?

A) E. Goldstien B) J. J. Thomson
C) Ernest Rutherford D) J. Chadwick
 
Answer & Explanation Answer: B) J. J. Thomson

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Q:

Who invented Antibiotics?

A) Joseph Lister B) William Harvey
C) Robert Knock D) Alexander Fleming
 
Answer & Explanation Answer: D) Alexander Fleming

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Q:

Who invented the Band-aid?

A) Earle Dickson B) Alan Gant
C) Louis Pasteur D) Frank Epperson
 
Answer & Explanation Answer: A) Earle Dickson

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Q:

Who Invented the 3-D printer?

A) Nick Holonyak B) Elias Howe
C) Chuck Hull D) Christiaan Huygens
 
Answer & Explanation Answer: C) Chuck Hull

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Q:

Who discovered the colour photography?

A) Robert Noyce B) Enrico Fermi
C) John Logie Baird D) James Clerk Maxwell
 
Answer & Explanation Answer: D) James Clerk Maxwell

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Q:

Who Invented FM Radio?

A) Edwin Howard Armstrong B) John Barber
C) Edwin Beard Budding D) Nicholas Callan
 
Answer & Explanation Answer: A) Edwin Howard Armstrong

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