General Awareness · Science General

Inventors and Scientific Discoveries

4,616 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 examples of bryophytes plant kingdom biology

The terms, 'caulonema' and 'chloronema' for protonema of Funaria were given by

  1. Bower

  2. Bopp

  3. Sironval

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

The terms, 'caulonema' and 'chloronema' for protonema of Funaria were given by Bopp. Bopp (1961) found that the caulonema stage, and thus the bud stage, can be delayed by low temperature, submersion, or low light.

Multiple choice

Who created the first periodic table?

  1. Einstein

  2. Burishnikov

  3. Eggbert

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

Dmitri Mendeleyev is credited with creating the first widely recognized periodic table of elements.

Multiple choice

What did King C Gillette invent?

  1. safety razor

  2. traffic lights

  3. camera

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

King C. Gillette is famous for inventing the disposable safety razor, which revolutionized shaving.

Multiple choice

Who invented ice cream maker?

  1. Nancy Johnson

  2. John Kogie Bair

  3. Thomas Alva Edison

  4. Isaac Newton
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nancy Johnson invented the hand-cranked ice cream freezer in 1843. This device significantly improved the process of making ice cream.

Multiple choice

Who made 3-D printers?

  1. Ted Hoff

  2. Chuck Hull

  3. Seymour Cray

  4. Edwin H Land
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chuck Hull is credited with inventing stereolithography, which is the basis for modern 3D printing technology, in 1983.

Multiple choice

Who invented the refrigerator?

  1. William Cullen

  2. John Walker

  3. William Oughtred

  4. Alexander Graham Bell
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

William Cullen demonstrated the first artificial refrigeration process in 1748 at the University of Glasgow.

Multiple choice

What did Martain Cooper invent?

  1. Mobile Phones

  2. Laptop

  3. Aeroplane

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

Martin Cooper invented the first handheld mobile phone and made the first public mobile phone call in 1973 while working at Motorola. The question asks what he invented.

Multiple choice

Who invented telephones?

  1. Thomas Alva Edison

  2. Alexander Graham Bell

  3. Wright Brothers

  4. Charles Babbage?
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alexander Graham Bell is credited with patenting the first practical telephone in 1876.

Multiple choice

Who invented Electricity

  1. James Watt

  2. Benjamin Franklin

  3. Thomas Alva Edison

  4. Albert Einstein
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Benjamin Franklin is famous for his kite experiment, which proved that lightning is electricity. While he did not 'invent' electricity as a physical phenomenon, he is the historical figure most associated with its early discovery and understanding.

Multiple choice

Who invented Radio?

  1. Alexander Graham Bell

  2. Charles Babage

  3. G. Marconi

  4. Michael Faraday
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Guglielmo Marconi is credited with inventing radio telegraphy and was the first to send wireless signals across the Atlantic. Alexander Graham Bell worked on the telephone, Charles Babbage on computers, and Michael Faraday on electromagnetism.

Multiple choice

Which of the following people is not an inventor?

  1. Alexander Graham Bell

  2. Paul Pogba

  3. Thomas Alva Edison

  4. Walter Hunt
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Paul Pogba is a professional football player, not an inventor. The others listed are historically recognized for their inventions.

Multiple choice

Who invented Bulb?

  1. Wright Brothers

  2. Nancy Johnson

  3. Thomas Alva Edison

  4. Graham Bell
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Thomas Alva Edison is widely credited with developing the first commercially practical incandescent light bulb.

Multiple choice

Who invented Television?

  1. John L.Baird

  2. Graham Bell

  3. Charles Babbage

  4. K C Gillete
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

John Logie Baird is credited with demonstrating the first working television system in 1926.

Multiple choice

Who invented Computers?

  1. Thomas Alva Edison

  2. Charles Babbage

  3. Ruth Handler

  4. Wright Brothers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Charles Babbage is often referred to as the father of the computer for his design of the Analytical Engine, the first general-purpose mechanical computer.