4
Q:

Atomic theory was devised by

A) Mosley B) John Dalton
C) Daimler D) None of these

Answer:   B) John Dalton



Explanation:
Subject: Inventions
Q:

Who invented the electric tram?

A) James Cook B) William Harvey
C) Fyodor Pirotsky D) Robert Boyles
 
Answer & Explanation Answer: C) Fyodor Pirotsky

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Q:

Who discovered Electron?

A) Enrico Fermi B) Robert Noyce
C) J.J.Thomson D) James Dyson
 
Answer & Explanation Answer: C) J.J.Thomson

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Q:

Who discovered Photon?

A) George Crum B) Albert Einstein
C) Henry Cavendish D) Humphry Davy
 
Answer & Explanation Answer: B) Albert Einstein

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Q:

Who discovered Uranus?

A) Sir Isaac Newton B) William Henry Fox Talbot
C) William Herschel D) Nicolaus Copernicus
 
Answer & Explanation Answer: C) William Herschel

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Q:

Who invented Space Pen?

A) Paul C. Fisher B) Rudolf Diesel
C) Wright Brothers D) Alexander Fleming
 
Answer & Explanation Answer: A) Paul C. Fisher

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Q:

General anaesthetic was invented by?

A) Alfred P. Southwick B) Isaac Singer
C) Murasaki Shikibu D) Hanaoka Seishū
 
Answer & Explanation Answer: D) Hanaoka Seishū

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Q:

Who invented E­Mail?

A) Tim Berners­-Lee B) James Gosling
C) Vinton Cerf D) VA Shiva Ayyadurai
 
Answer & Explanation Answer: D) VA Shiva Ayyadurai

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Q:

Dynamite was invented by?

A) Jean-Antoine Nollet B) Alfred Nobel
C) Joseph Nicephore Niepce D) Ted Nelson
 
Answer & Explanation Answer: B) Alfred Nobel

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