Question # 1

Commutator was invented in

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1820

1830

1834

1840

The temperature scale based upon triple point of water was given by

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Rumford

Carnot

Kelvin

Celsius

Positron was discovered by

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Wilson

Anderson

Dirac

Stefan

Max. Planck was awarded Nobel prize in.

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1916

1918

1921

1923

The diffraction of light was discovered by

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Newton

Young

Francesco Grimaldi

Hertz

Who developed the first atomic reactor.

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Bohr

Fermi

Rutherford

Taylor

Every point on any wave front can be considered as a new source of waves This statement is known as.

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Huygen's wave theory

Michelson's wave theory

Remain's effect

Rayligh's wave theory

Who was the author of Mathematical principles of Natural philosophy.

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Kepler

Einstein

Max Planck

Newton

The law of gravitation was introduced by

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Huygen

Boyle

Newton

Pascal

Artificial radioactivity was discovered by

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Rontgen

Becquered

Rutherford

Marie Curie and Pierre Curie

The first demonstration of wave nature of light was provided in 1801 by the experiment of

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HHuygen

Thomas young

Fresnel

Maxwell

The law of motion and gravitation were introduced by.,

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Albert Einstein

Issac Newton

Galileo

Archimedes

Who proposed the thermodynamic scale of temperature.

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Saadi carnot

Lord Kelvin

Sir james dewar

Gabriei fahrenheit

Who first discovered a similarity in nature of x rays and light rays.

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Roentgen

Bragg

Man Von Lave

Moseley

Photophone was invented by

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Graham bell

Galileo

Michelson

Faraday

Who discovered a relation between electric and magnetic field.

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Hans Christian Oersted

Michelson Faraday

Lenz

Hertz

Michelson's interferometer was devised in.

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1801

1825

1867

1881

Who introduced the concept that an atom posses quantized energy levels.

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Raman

Bohr

Newton

Fermi

Interference effects of light were verified by

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Thomas Young

Newton

Bragg

Huygen

The velocity of light was determined accurately by

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Newton

Huygen

Michelson

Young

The first super conductor was discovered in.

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1905

1911

1917

1923

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PPSC Physics Chapter 8 Scientists, Their Inventions and discoveries MCQs With Answers

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