Question # 1

Davison and Germer received the Nobel Prize in

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1929

1931

1935

1937

Who discovered the exclusion principle which states that no two electrons can occupy the same quantum mechanical state in a given system.

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Neils Bohr

Issac Newton

Wolfgang Pauli

Max Planck

Who discovered a phenomenon of thermos electricity.

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Peltier

Joule

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thomson

J.R. Rydberg Obtained a formula to describe the wavelength of the hydrogen atom in

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1785

1885

1936

1966

Prince Louis and vector de Brogtle got Nobel Prize for their work on.

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The dual nature of particles

The wave nature of particles

the corpuscular nature of particles

All of the above

Photophone was invented by

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Graham bell

Galileo

Michelson

Faraday

Light travels perpendicular to electric and magnetic fields and requires no material medium, was proposed by.

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Einstein

Max planck

Maxwell

Bragg

The wave nature of light was proposed by

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Thomas Young

Fresnel

Maxwell

Huygen

Commutator was invented in

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1820

1830

1834

1840

Who pointed out that both wave and particle aspects are required for the complete description of both radiation and matter.

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Davison and Germer

J.J.Thomson

Neil Bohr

Compton

Michelson's interferometer was devised in.

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1801

1825

1867

1881

Geiger counter was designed by

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Wilson

Geiger and Muller

Lawrence

Mosely

Who invented commutator.

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William Sturgeon

William Smith

Michael Faraday

Mosely

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

Wave theory of light was proposed by

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Newton

Thomas Young

Maxwell

Huygen

The first artificially produced nuclear transmutation was accomplished by.

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Curie

Rutherford

Becquerel

Chadwick

Which scientist announced for the first time that the universe is expanding.

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Einstein

Newton

Edward Hubble

Karl Marx

Which of the following pair is correct.

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Rutherford - x-rays

Roentgen - Electron

Chadwick - Neutron

J.J. Thomson -Photon

Who suggested that energy is radiated or absorbed in discrete packers called quanta.

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Max. Planck

Stefan

Lummer

Boltzmann

Natural radioactivity was discovered in.

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1978

1896

1904

1906

Who described an ideal heat engine in 1840

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Boyle

Saadi Carnot

Kelvin

Currie

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

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