Question # 1

A relationship between mechanical work and heat energy was firstly established dby.

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Davy

Count Rumford

Joule

Kelvin

The special theory of relativity was presented in 1905 by

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Young

Planck

Schrodinger

Einstein

Who proposed that light energy travels in space by means of wave motion.

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Maxwell

Planck

De-Broglie

Huygen

Who originated the idea of heat death of the universe is 1852

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Lord Kelvin

James thomson

John Thomson

Saadi Carnot

Who developed the world's first vacuum pump in 1650.

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Otto vori Guricke

Lord Kelvin

Saadi Carnot

James maxwell

Who provided theoretical explanation of a blackbody spectrum.

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Einstein

Planck

Wien

stefan

Polaroid's were invented in

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1787

1887

1897

1929

Who studied freely failing bodies using modern scientific method.

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Galileo

Issac newton

Abert Einstein

Alkundi

The convincing evidence of the wave nature of electrons was provide by.

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Stefan

Rayleigh

Davision and Germer

Balmer

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

Who discovered a phenomenon of thermos electricity.

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Peltier

Joule

Seeback

thomson

The cloud chamber was invented by C.T.R. Wilson in

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1905

1907

1909

1911

Michelson's interferometer was devised in.

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1801

1825

1867

1881

The phenomenon of natural radioactivity was discovered by

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Lord Rutherford

James Chadwick

Herie Becquerel

Maria curie

Who explained Browian movement quantitatively.

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Issac Newton

albert Einstein

James Maxewll

Robert Brown

The first artificially produced nuclear transmutation was accomplished by.

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Curie

Rutherford

Becquerel

Chadwick

The nuclear model of the atom was derived partly from experiments involving the scattering of alpha particles performed by.

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Chadwick

Rutherford

Anderson

Einstein

Who developed the first atomic reactor.

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Bohr

Fermi

Rutherford

Taylor

Who measured the intensity of emitted energy with wavelength radiated from a blackbody at different temperature.

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Lummer

Pringsheim

stefan

Both a and c

The law of gravitation was introduced by

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Huygen

Boyle

Newton

Pascal

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

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