Question # 1

When did an international committee agree on a set of definition of units.

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1912

1956

1960

1986

Prof. Abdul Salam was awarded Novel prize in

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1970

1972

1979

1983

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

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Stefan

Rayleigh

Davision and Germer

Balmer

Interference effects of light were verified by

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Thomas Young

Newton

Bragg

Huygen

Who explained the Fraunhofer lines in the spectrum of solar radiations.

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Wein

Stefan

Fraunhofer

Kirchoff

Davison and Germer received the Nobel Prize in

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1929

1931

1935

1937

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

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Maxwell

Planck

De-Broglie

Huygen

Who identified the first series in the spectrum of hydrogen.

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Lyman

Balmer

Pfund

Brackett

Who discovered a relation between electric and magnetic field.

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Hans Christian Oersted

Michelson Faraday

Lenz

Hertz

Balmer identified the spectral lines in the spectrum of hydrogen in

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1785

1885

1936

1966

Who described an ideal heat engine in 1840

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Boyle

Saadi Carnot

Kelvin

Currie

who gave the law of equipartition.

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Maxwell

Carnot

Claussius

Boltzmann

Who devised a technique for the measurement of change on an electron in 1909

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Milikan

Joule

Ampere

Ohm

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

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Fermi

Newton

Bohr

Einstein

Who first studied the visible region of hydrogen spectrum.

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Lyman

Pfund

Balmer

Brackett

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

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