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

The concept of origin of new species through natural selection was proposed by

  1. Darwin

  2. Linnaeus

  3. Mendel

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

Darwin's theory of natural selection explains how species evolve over generations through differential survival and reproduction. Linnaeus focused on taxonomy, Mendel on genetics, and Weismann on germ plasm theory. The correct answer is Darwin as he first proposed natural selection as the mechanism for origin of new species.

Multiple choice

Who invented Homeopathy in 1810?

  1. Samuel Johnson

  2. Edward Jenner

  3. Samuel Hahnemann

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

Homeopathy was developed by German physician Samuel Hahnemann in 1810. He published 'Organon of the Healing Art' which established the fundamental principles of homeopathic medicine based on the concept of 'like cures like'. Edward Jenner developed vaccination, Samuel Johnson was a literary figure, and John Dalton was a chemist.

Multiple choice

Who proposed binomial nomenclature?

  1. Carolus Linnaeus

  2. Charles Darwin

  3. E.H. Hackel

  4. Robert Whittaker

  5. Eichler
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Linnaeus gave a system in which an organism is given two names. The first part is the generic name and the second part is the specific name.

Multiple choice

The term ‘cell’ was given by

  1. Flemming

  2. Robert Brown

  3. Robert Hooke

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

Robert Hooke coined the term 'cell' in 1665 when observing cork under a microscope, noting box-like structures resembling monks' cells. Flemming studied mitosis, Robert Brown discovered the nucleus, and Darwin proposed evolution by natural selection.

Multiple choice

Who invented the microprocessor?

  1. Robert Noyce and Gordon Moore

  2. Georges Claude

  3. Gregory Pincus

  4. Michael de Bakey
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Robert Noyce and Gordon Moore invented the first commercial microprocessor (the Intel 4004) in 1971 while working at Intel. They were co-founders of Intel along with Arthur Rock. This invention revolutionized computing by putting the entire CPU on a single chip. The other names are not associated with microprocessor invention.

Multiple choice

Who wrote the world first computer program?

  1. Alan turing

  2. Bill Gates

  3. Ada Lovelace

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

Ada Lovelace wrote the first algorithm intended for processing by a machine in the mid-1800s, working on Charles Babbage's Analytical Engine. Alan Turing came much later in the 1940s and founded computer science, but Lovelace was the first programmer.

Multiple choice

Who invented computer?

  1. Madame Curie

  2. Einstein

  3. Newton

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

Charles Babbage designed the first mechanical computer, the Difference Engine (1822) and the Analytical Engine (1837), earning him the title 'Father of the Computer'. While modern computing involved many contributors, Babbage's designs established the fundamental principles.