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 zoology applications of biotechnology cloning process of cloning gene cloning

Clone Dolly was produced by the attempts of

  1. Charles Darwin

  2. Lederberg

  3. Ian Wilmut

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Sir Ian Wilmut, (born July 7, 1944, Hampton Lucy, Warwickshire, Eng.), British developmental biologist who was the first to use the nuclear transfer of differentiated adult cells to generate a mammalian clone, a Finn Dorset sheep named Dolly.
  • It was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.
  • Hence Clone Dolly was produced by the attempts of Ian Wilmut.
  • So, the correct answer is 'Ian Wilmut'.
Multiple choice zoology applications of biotechnology cloning process of cloning gene cloning

The scientist who performed successful animal cloning for the first time is 

  1. Flemming

  2. Jenner

  3. Watson

  4. Ian Wilmut
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Flemming in 1928 discovered antibiotic Penicillin from Penicillium.
B. Jenner discovered world's first vaccine for smallpox.
C. Watson along with his co-worker Crick, described the double helix structure of DNA and this model is known as Watson-Crick model.
D. Ian Wilmut was the first to perform cloning. He cloned a sheep from a somatic cell and named her Dolly.
So, the correct answer is 'Ian Wilmut'.
Multiple choice physics science in daily life introduction to science contribution of physics in technology and society physics in relation to other sciences

The first husband-wife team to get the Nobel Prize for Physics was.

  1. Frederick Joliot-Irene Joliot-Curie

  2. Pierre Curie-Marie Curie

  3. Carl Cori-Gerty Cori

  4. Gunnar Myrdal-Alva Myrdal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The first husband - wife to get the Nobel prize for Physics was PIERRE-CURIE and MARIE CURIE in $1903$ and they shared prize with Antonie Henri Becquerel for their joint research.

Multiple choice evs digestion of food diseases caused by changes in lifestyle nutrition deficiency diseases study of ecological pyramids

The concept of ecological pyramids was proposed by 

  1. Elton

  2. Odum

  3. Darwin

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

A (elton) is the correct answer.

Elton proposed the concept of ecological pyramids Ecological pyramid is a graphical representation that shows the biomass at each trophic level. Odum is the father of modern ecology. Clements proposed the theory of plant succession. darwin proposed the theory of biological evolution by natural selection.

Multiple choice physics some natural phenomena how lightning occurs? the story of lightning advanced of lightning

Atmospheric electricity was discovered by

  1. Isaac Newton

  2. Michael Faraday

  3. Benjamin Franklin

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

Atmospheric electricity is the study of electrical charges in the earth's atmosphere. Benjamin Franklin discovered it. His experiments showed that electrical phenomenon of atmosphere were not fundamentally different from those produced in the laboratory by listing many similarities between electricity and lighting. 

Multiple choice newton's colour disc light and the formation of shadows physics

Newton's colour disc was invented by whom?

  1. Albert Einstein

  2. Sir Isaac Newton

  3. Sir Isaac Newton and Faraday

  4. Sir Isaac Newton and John Kennedy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Newton's colour disc, as the name suggests, was invented by Sir Issac Newton and is a disc with seven segments in rainbow colours.

Hence, the correct answer is OPTION B. 

Multiple choice newton's colour disc light and the formation of shadows physics

It was the British scientist _______who discovered in 1666 that light consists of seven colours. Fill in the blank.

  1. Henry

  2. John Dalton

  3. Sir Issac Newton

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

Correct answer is (a) Sir Issac Newton.

In 1666, during one of his optical experiments, Newton passed a beam of sunlight through a glass prism. The glass prism split the light into a band of seven colours on his wall. This phenomena is known as dispersion of light

He called this band of colours the ‘spectrum’. Thus the spectrum is a band of seven colours which is obtained by splitting of white light by a glass prism.

Multiple choice

The Law of Octaves was given by...?

  1. Mendeleev John

  2. Dobereiner

  3. Newlands

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

John Newlands proposed the Law of Octaves in 1865, which stated that elements exhibit similar properties when arranged by increasing atomic mass, repeating every eighth element.

Multiple choice

Who invented the miner's safety-lamp?

  1. Sir Humphrey Davy

  2. Sir Frank Whittle

  3. Alexander Graham Bell

  4. Thomas Alva Edison
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sir Humphry Davy invented the Davy lamp in 1815 to allow miners to work in coal mines where methane and other flammable gases were present.

Multiple choice

Who invented Bakelite?

  1. Charles Goodyear

  2. Leo Hendrik Baekeland

  3. Roy Plunkett

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

Leo Hendrik Baekeland was a Belgian-American chemist who invented Bakelite, the first plastic made from synthetic components, in 1907.

Multiple choice

Who invented the X-ray

  1. Louis Pasteur

  2. John Hopps

  3. Wilhelm Conrad Roentgen

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

Wilhelm Conrad Roentgen discovered X-rays in 1895, for which he received the first Nobel Prize in Physics.

Multiple choice

Who discovered that DNA is a double helix?

  1. Archibald Garrold

  2. Watson and Crick

  3. Frederick Griffith

  4. Avery and MacLeod
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

James Watson and Francis Crick, using data from Rosalind Franklin and Maurice Wilkins, determined the double helix structure of DNA in 1953.