Scientist and their achievements - class-VI
scientist and their achievements
Questions
Who invented the cyclotron?
- James Chadwick
- James Clerk Maxwell
- Michael Faraday
- Ernest Orlando Lawrence
In which year did Hahn and Meitner discover the phenomenon of neutron-induced fission of uranium. ?
- $1938$
- $1950$
- $1945$
- $1928$
Lightning was discovered by the
- Ohm
- Thomson
- Franklin
- Faraday
Sir C.V.Raman got Nobel Prize in physics for the
- refraction of light
- reflection of light
- scattering of light
- dispersion of light
Which of the following statements is incorrect. ?
- Bohr gave theory of hydrogen atom and Yukawa, the theory of nuclear forces.
- Law of gravitation was discovered by Newton and principle of inertia by Galileo
- Laws of photoelectric effect were discovered by Einstein and laws of electromagnetic induction by Faraday.
- Neutron was discovered by J.J.Thomson and electron was discovered by James Chadwick.
Which of the following Indian scientists is known for his achievements in Mathematics?
- Jagadish Chandra Bose
- Srinivasa Ramanujan
- Vikram Sarabhai
- Salim Ali
Which Indian scientist is popularly known as missile man of India?
- Dr. A. P. J. Abdul Kalam
- Dr. C .V. Raman
- Dr. Har Gobind Khorana
- None of the above
Which Indian scientist won the Nobel Prize in 1968 for demonstrating how the nucleotides in nucleic acids control the synthesis of proteins?
- Satyendra Nath Bose
- A.P.J. Abdul Kalam
- S.S. Abhyankar
- Har Gobind Khorana
Marie Curie is credited to the development of which of the following element ?
- Thorium
- Cesium
- Radium
- Carbon
Which subatomic particle is named after the Indian scientist Dr. Bose?
- Boson
- Boron
- Positron
- B meson
Law of electromagnetic induction was given by _____________.
- Hans Christian Oersted
- Michael Faraday
- Joseph Henry
- J.J. Thomson
Which of the following Indian scientists published papers that helped other scientists to simplify the complex mathematics problems?
- Meghnad Saha
- Vikram Sarabhai
- Srinivasa Ramanujan
- Salim Ali
Which of the following books is not written by Werner Heisenberg?
- Breakthrough
- The Physical Principles of the quantum theory
- Physics and Philosophy
- Physics and Beyond
Antoine Henri Becquerel was awarded the Nobel Prize in $1903$ for.
- Discovering spontaneous radioactivity
- Diffraction of X-rays
- Demonstrating the influence of earth's magnetic field on its atmosphere
- Investigating the absorption of light by crystals
He was a professor of mathematics at St. Petersburg University, Prof. of anatomy and physics at the University of Groningen, and prof. of physics, anatomy and botany at the University of Basle. But he is most famous for what is known as 'Bernouilli's theorem'. Name the outstanding mathematician- of a well-known Swiss family.
- Johann Bernouilli
- Jacob Bernouilli
- Danial Bernouilli
- None of these
Oersted and Faraday unified which of the following achievements?
- Electric and magnetic phenomena
- Electromagnetism and optics
- Electro-weak forces
- Terrestrial and celestial
Which scientist's achievement is related to scattering of light?
- A. P. J. Abdul Kalam
- C. V. Raman
- Homi Jehangir Bhabha
- Jagadish Chandra Bose
Which of the following Indian scientists was also one of the Presidents of India?
- A. P. J. Abdul Kalam
- Homi Jehangir Bhabha
- Jagadish Chandra Bose
- Har Gobind Khorana
'Raman Effect' is named after which of the following Indian scientists?
- Dr. A. P. J. Abdul Kalam
- C. V. Raman
- Homi Jehangir Bhabha
- Jagadish Chandra Bose
Which of the following Indian scientists is known as the father of the Indian Space program?
- Vikram Sarabhai
- Srinivasa Ramanujan
- Har Gobind Khorana
- Jagadish Chandra Bose
Laws of planetary motion were given by _____________.
- Issac Newton
- Archimedes
- James Maxwell
- Johannes Kepler
Which scientist is most famous for his work on the quantum physics along side with Albert Einstein?
- Meghnad Saha
- S.S. Abhyankar
- Satyendra Nath Bose
- Vikram Sarabhai
$2$ December $1942$ is known for.
- The formation of the Big Bang theory
- The activation of the first operational nuclear reactor
- The creation of the first controlled chain reaction
- The development of the first thermonuclear device
Who enunciated the principle of equipartition of energy?
- Ludwig Bolizmann
- Joseph Stefan
- Sir James Hopwood Jeans
- James Prescott Joule
He introduced a triatomic theory of colour vision, was the first to observe ocular astigmatism, he proved that the accommodation of eye was affected by change of curvature of the crystalline lens, but most famour for his discovery of interference of light and for developing the wave theory of light. Who was this physician-cum-physicist?
- Augustin Jean F. Fresnel
- Humphrey Lloyd
- Christiaan Huygens
- Thomas Young
Who was the first to introduce the concept of antiparticle theoretically. ?
- Niels Bohr
- Ernest Rutherford
- Albert Einstein
- Paul Dirac
What Benjamin Franklin invented?
- Bifocal spectacles
- Radio
- Barometer
- Hygrometer
Who in $1939$ suggested the name meson for middle-weight particles?
- Abraham Pais
- Homi J. Bhabha
- Hideki Yukawa
- C. Anderson
Who was the first pre-Socratic philosopher to suggest that matter could neither be created nor destroyed?
- kepler
- Newton
- parmenides
- None of these