General Awareness ยท Science General

Inventors and Scientific Discoveries

4,454 Questions

This hub provides questions related to great inventors and their scientific discoveries. It covers the inventors of the telephone, radio, and microchips, alongside Nobel Prize winners. These facts are crucial for the general awareness section of major competitive exams.

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Inventors and Scientific Discoveries Questions

Multiple choice

Which invention made long-distance communication possible?

  1. The telegraph

  2. The telephone

  3. The radio

  4. The internet
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The telegraph, invented in the 19th century, allowed for the transmission of messages over long distances using electrical signals.

Multiple choice

What was the first major discovery in the field of genetics?

  1. The structure of DNA

  2. The genetic code

  3. The role of genes in heredity

  4. The discovery of chromosomes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

James Watson and Francis Crick's discovery of the structure of DNA in 1953 was a major breakthrough in the field of genetics.

Multiple choice

Which invention revolutionized the way people listened to music?

  1. The phonograph

  2. The radio

  3. The compact disc

  4. The MP3 player
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The phonograph, invented by Thomas Edison in the 19th century, allowed for the recording and playback of sound.

Multiple choice

Which technological innovation enabled the first transatlantic telegraph communication in the 19th century?

  1. Telephone

  2. Radio

  3. Steam Engine

  4. Electric Telegraph
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The electric telegraph, developed by Samuel Morse, allowed for the transmission of messages over long distances using electrical signals.

Multiple choice

Which technological advancement enabled the first powered flight and marked the beginning of the aviation era?

  1. Hot Air Balloon

  2. Glider

  3. Steam Engine

  4. Wright Flyer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Wright Flyer, built by the Wright brothers, was the first successful heavier-than-air powered aircraft.

Multiple choice

Who is credited with the first demonstration of the photovoltaic effect?

  1. Albert Einstein

  2. James Clerk Maxwell

  3. Michael Faraday

  4. Alexandre Edmond Becquerel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In 1839, Alexandre Edmond Becquerel discovered the photovoltaic effect while experimenting with a voltaic pile.

Multiple choice

Which scientist developed the first practical solar cell?

  1. Charles Fritts

  2. Russell Ohl

  3. Daryl Chapin

  4. Calvin Fuller
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In 1883, Charles Fritts created the first practical solar cell using selenium.

Multiple choice

What type of telescope did Isaac Newton invent?

  1. Refracting telescope

  2. Reflecting telescope

  3. Catadioptric telescope

  4. Radio telescope
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Isaac Newton invented the reflecting telescope, which uses a curved mirror instead of lenses to focus light. This design eliminated chromatic aberration, a problem encountered in refracting telescopes.

Multiple choice

What is the name of the first artificial intelligence program to pass the Turing test?

  1. ELIZA

  2. PARRY

  3. SHRDLU

  4. Eugene Goostman
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Eugene Goostman, developed by Russian researchers in 2014, is the first artificial intelligence program to pass the Turing test, convincingly imitating human conversation.

Multiple choice

Which of the following is NOT a scientific discovery that was made during the Scholastic period?

  1. The heliocentric theory of the solar system

  2. The law of universal gravitation

  3. The circulation of blood

  4. The germ theory of disease
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The germ theory of disease was not discovered until the 19th century, long after the end of the Scholastic period.

Multiple choice

What are some of the famous people who have dysgraphia?

  1. Albert Einstein.

  2. Thomas Edison.

  3. Leonardo da Vinci.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Albert Einstein, Thomas Edison, and Leonardo da Vinci are all famous people who had dysgraphia.

Multiple choice

Who is widely credited with inventing the first practical telephone?

  1. Alexander Graham Bell

  2. Thomas Edison

  3. Antonio Meucci

  4. Charles Wheatstone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alexander Graham Bell is universally recognized as the inventor of the first practical telephone, which he patented in 1876.

Multiple choice

What was the name of the first telephone exchange?

  1. The New Haven District Telephone Company

  2. The Bell Telephone Company

  3. The Western Union Telegraph Company

  4. The American Telephone and Telegraph Company
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The first telephone exchange was established in New Haven, Connecticut, in 1878, and was called The New Haven District Telephone Company.

Multiple choice

What was the name of the first telephone switchboard?

  1. The Magneto Switchboard

  2. The Common Battery Switchboard

  3. The Automatic Switchboard

  4. The Electronic Switchboard
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Magneto Switchboard was the first telephone switchboard, invented by Almon Strowger in 1889.

Multiple choice

Who is credited with inventing the first modern tennis racket?

  1. Walter Clopton Wingfield

  2. James Dwight

  3. Henry Slocum

  4. William Renshaw
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Walter Clopton Wingfield, a British Army officer, is credited with inventing the first modern tennis racket in 1874.