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
  1. Lipmann

  2. Koch

  3. Both (1) and (2)

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fritz Lipmann is widely recognized for his work on the discovery of coenzyme A and his contributions to understanding the ATP cycle in cellular metabolism.

Multiple choice
  1. father of ECG

  2. father of virology

  3. both (1) and (2)

  4. none of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Wendell Meredith Stanley was an American biochemist and virologist who is known for his work on the crystallization of the tobacco mosaic virus, often cited as a pioneer in virology.

Multiple choice
  1. Benjamin Franklin (U.S.)

  2. John J. Loud (U.S.)

  3. Lwo H. Backeland

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Leo Hendrik Baekeland invented Bakelite, the first synthetic plastic, in 1907. The spelling in option C has errors, Lwo instead of Leo, Backeland instead of Baekeland, but this is still the intended correct answer.

Multiple choice
  1. The Theory of Evolution;Origin of species

  2. Electron Theory,Atomic structure

  3. Theory of relativity.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Charles Darwin is best known for his work on the theory of evolution by natural selection, which he detailed in his book, On the Origin of Species. The other options refer to physics concepts unrelated to his work.

Multiple choice
  1. James Chadwick

  2. J.J.Thomson

  3. Daniel Rutherford

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

J.J. Thomson discovered the electron in 1897 through his experiments with cathode ray tubes. James Chadwick discovered the neutron, and Ernest Rutherford is known for the proton and the atomic nucleus.

Multiple choice
  1. Albert Sabin

  2. Burkholder

  3. Louis Pasteur

  4. Jonas Salk

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Albert Sabin developed the oral polio vaccine, while Jonas Salk developed the inactivated (injectable) polio vaccine.

Multiple choice
  1. Robert Hooke

  2. Robert Brown

  3. Purkinje

  4. Virchow

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cells were discovered by Robert Hooke in 1665 and he saw that the cork resembled the structure of Honey comb. Hence, he called these boxes cells. (Cell is a Latin word, which means a little room.)

Multiple choice
  1. Schleiden and Schwann

  2. Robert Hooke

  3. Mendel and Morgan

  4. Purkinje

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Schleiden and Schwann proposed the cell theory and they were awarded the Nobel Prize for this contribution.

Multiple choice
  1. Robert Hooke

  2. Antony van Leeuwenhock

  3. Aristotle

  4. Linnaeus

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Antony van Leeuwenhoek is widely recognized for his pioneering work in microscopy and for inventing the simple microscope.