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

Neon lamp was invented by

  1. G. Claude

  2. P. Claude

  3. S. Claude

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

Georges Claude (G. Claude) invented the neon lamp in 1910. He discovered that passing an electric current through neon gas in a sealed tube produced a bright red glow. George Mendel is not associated with this invention.

Multiple choice

Who invented electric bulb?

  1. Edison

  2. Newton

  3. Galileo

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

Thomas Edison invented the first commercially practical incandescent light bulb in 1879. While other scientists like Swan had earlier versions, Edison's was the first successful and widely adopted design. Newton worked on gravity, Galileo on astronomy, and Marconi on radio.

Multiple choice

Who was the inventor of 'Telephone'?

  1. Alexander Graham Bell

  2. Edward Charles Bell

  3. Alexander Melville Bell

  4. Melville James Bell
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alexander Graham Bell is credited with inventing the telephone in 1876 and was awarded the first patent. The other options are fictional or incorrect names.

Multiple choice

Albert S. Humphery was the originator of

  1. SWOT Analysis

  2. Industry Analysis

  3. GE Model

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

Albert S. Humphery was the originator of SWOT Analysis. SWOT is the analysis of a company’s Strengths, Weaknesses, Opportunities and Threats to identify a strategic niche that the company could exploit. SWOT Analysis merges the external factors (environment analysis, opportunities and threats identification) with the internal factors (company’s resource analysis, identification of company’s strengths and weaknesses). 

Multiple choice

Who postulated the theory of law of maximum energy in biological system?

  1. H. T. Odom

  2. Pinkerton

  3. Lotka

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lotka formulated the law of maximum energy, which states that natural systems tend to maximize energy flow and utilization. This principle is fundamental to understanding energy dynamics in biological systems and ecosystem productivity.

Multiple choice

Who invented Gas Mask and the Traffic signal?

  1. Reobert Koch

  2. Garrett A. Morgan

  3. Frtiz Haber

  4. Henry Fayol

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Garrett A. Morgan, an African-American inventor, patented both the gas mask (1914) and the traffic signal (1923). His inventions have saved countless lives and improved road safety.

Multiple choice

The Swiss biochemist who, in 1868, discovered DNA was

  1. Robert Feulgen

  2. Alfred Mirsky

  3. Friedrich Miescher

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Friedrich Miescher was a Swiss physician and biochemist who isolated nuclein (now known as DNA) from white blood cells in 1869. He is credited with the discovery of DNA as a distinct chemical substance, though he did not understand its genetic significance.

Multiple choice

Oxygen was discovered by

  1. Cavendish

  2. Scheele

  3. Priestley

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

Joseph Priestley discovered oxygen in 1774 by heating mercuric oxide. He called it 'dephlogisticated air'. Scheele also discovered it independently but Priestley published first.

Multiple choice

Which of the following is incorrectly matched?

  1. G. W. Carver – Father of agricultural biotechnology

  2. G. J. Mendel – Father of human genetics

  3. Haberlandt – Father of plant tissue culture

  4. Karl Ereky – Coined the term biotechnology

  5. Wilhelm Johannsen – Coined the term gene
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 G. J. Mendel – Father of genetics Archibald Garrod – Father of human genetics