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PPSC Physics Chapter 8 Scientists, Their Inventions and discoveries MCQs With Answers
Question # 1
The special theory of relativity was presented in 1905 by
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Young
Planck
Schrodinger
Einstein
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Question # 2
Who proposed the thermodynamic scale of temperature.
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Saadi carnot
Lord Kelvin
Sir james dewar
Gabriei fahrenheit
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Question # 3
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
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Question # 4
Young's double slit experiment was performed in
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1801
1916
1901
1934
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Question # 5
Who discovered a phenomenon of thermos electricity.
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Peltier
Joule
Seeback
thomson
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Question # 6
Who suggested that energy is radiated or absorbed in discrete packers called quanta.
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Max. Planck
Stefan
Lummer
Boltzmann
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Question # 7
The law of gravitation was introduced by
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Huygen
Boyle
Newton
Pascal
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Question # 8
Balmer identified the spectral lines in the spectrum of hydrogen in
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1785
1885
1936
1966
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Question # 9
The concept of entropy was introduced by
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Saadi Carnot
Boyle
Charles
Rudolph Celsius
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Question # 10
Positron was discovered by
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Wilson
Anderson
Dirac
Stefan
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Question # 11
The convincing evidence of the wave nature of electrons was provide by.
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Stefan
Rayleigh
Davision and Germer
Balmer
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Question # 12
Who described an ideal heat engine in 1840
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Boyle
Saadi Carnot
Kelvin
Currie
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Question # 13
Who introduced the concept that an atom possesses quantized energy levels.
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Fermi
Newton
Bohr
Einstein
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Question # 14
Which scientist coined the term quantum mechanics.
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Kari mark
Max Born
Erwin schrodinger
Issac Newton
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Question # 15
Who was the first to suggest the existence of a positively charged nucleus in an atom.
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J.J Thomson
R.A Millikan
E.Rutherford
Neil Bohr
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Question # 16
Who explained the Fraunhofer lines in the spectrum of solar radiations.
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Wein
Stefan
Fraunhofer
Kirchoff
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Question # 17
Davision and Germer 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
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Question # 18
Interference effects of light were verified by
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Thomas Young
Newton
Bragg
Huygen
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Question # 19
Some concept of static electricity were introduced by.
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Chinese
Plato
Thales
Archimedes
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Question # 20
Which scientist announced for the first time that the universe is expanding.
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Einstein
Newton
Edward Hubble
Karl Marx
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Question # 21
Who proposed that light energy travels in space by means of wave motion.
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Maxwell
Planck
De-Broglie
Huygen
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