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.

Famous inventionsNobel Prize winnersScientific conceptsKey inventors

Inventors and Scientific Discoveries Questions

Multiple choice

Who invented the thermometer?

  1. Harvey

  2. Galileo

  3. Newton

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

Galileo Galilei invented the first thermometer in 1593, called a thermoscope. It showed temperature changes but lacked a scale. Later scientists like Fahrenheit improved upon his design.

Multiple choice

The first computer mouse was built by

  1. Doughlas Engelbart

  2. William English

  3. Daniel Cougher

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

William English (Bill English) built the first computer mouse prototype in 1964 under Douglas Engelbart's direction at Stanford Research Institute. Engelbart invented the concept, but English was the engineer who physically constructed it.

Multiple choice

Symbolic logic was discovered by

  1. George Boole

  2. Herman Hollerith

  3. Van Neumann

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

George Boole developed Boolean algebra and symbolic logic in the mid-1800s, which became the foundation for digital computer logic. Herman Hollerith developed punch card tabulation, Von Neumann contributed to computer architecture, and Pascal was a programming language pioneer.

Multiple choice

Laws of heredity was put forward by

  1. Mendel

  2. Mendeleev

  3. Pavlov

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

Gregor Mendel formulated the fundamental laws of heredity through his pea plant experiments in the 1860s, establishing the principles of segregation and independent assortment. Mendeleev developed the periodic table, Pavlov studied conditioned reflexes, and Koch discovered the tuberculosis bacillus - none worked on inheritance patterns.

Multiple choice

The term cell was coined by

  1. Anton won Leeuwenhoek

  2. Robert Hooke

  3. M. Schleiden

  4. Theodor Schwann

  5. Rudolf Virchow
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While observing a thin slice of cork, he noticed small box like structures in it.  He called them cells.

Multiple choice

Which of the following statements is correct?

  1. Hooke was first to observe living cells and introduce the word cell to describe them.

  2. Brown, Schleiden and Schwann, all working independently, were the first to propose cell theory.

  3. Rudolf Virchow was the first to propose that 'all cells arise from other cells'.

  4. Leeuwenhoek was the first to observe unicellular organisms in pond water.

  5. Theodor Schwann observed plant parts and concluded that all plant parts were made up of cells.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Leeuwenhoek was the first to observe unicellular organisms in pond water.

Multiple choice

Who among the following won the Nobel Prize twice?

  1. Winston Churchill

  2. Madame Curie

  3. Octavio Paz

  4. George Choupak

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

Madame Curie (Marie Curie) is the only person to win Nobel Prizes in two different sciences - Physics in 1903 (shared with her husband Pierre) for radioactivity research, and Chemistry in 1911 for discovering radium and polonium. Winston Churchill won the Nobel Prize in Literature, while Octavio Paz and George Choupak each won only one Nobel Prize.

Multiple choice

Who invented the lighting conductor?

  1. Issac Newton

  2. C.V.Raman

  3. Benjamin Franklin

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

Benjamin Franklin invented the lightning conductor (lightning rod) in 1752 through his famous kite experiment, which demonstrated that lightning was electrical. Isaac Newton was a physicist, C.V. Raman was a Nobel laureate in physics, and Charles Boyle was a chemist - none invented the lightning conductor.

Multiple choice

C programming was invented by ___________.

  1. Dennis Ritchie in 1972

  2. Dennis Lily in 1971

  3. George in 1972

  4. Runge Kutta in 1970

  5. Both Dennis Ritchie and Dennis Lily in 1972
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

He was the famous scientist who developed C programming.