General Scientific Laws TNPSC Group 1 Questions

Physics

General Scientific Laws MCQ Questions

7.
Which of the following principles is used in firing rockets?
A.
Boyle's Law
B.
Newton's third law of motion
C.
Kinetic theory of gases
D.
Newton's law of gravitation
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ANSWER :
B. Newton's third law of motion
8.
A bucket immersed in water is felt lighter because of
A.
Pascal's Law
B.
Laws of floatation
C.
Archimedes Principle
D.
All of these
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ANSWER :
C. Archimedes Principle
9.
According to kepler's first law of planetary motion, planets move in
A.
straight lines
B.
elliptical orbits
C.
circular orbits
D.
a parabola
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ANSWER :
B. elliptical orbits
10.
"Volume of a gas is inversely proportinal to pressure" this is
A.
Boyle's Law
B.
Charles Law
C.
Dalton's Law
D.
Henry's Law
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ANSWER :
A. Boyle's Law
11.
which of the following is correctly matched?
A.
Hydraulic press-Archimedes principle
B.
Lift of Aeroplane-Bernouli's principle
C.
Electron gun- Newton's third law
D.
Electron microscope-Refraction of electron wave
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ANSWER :
B. Lift of Aeroplane-Bernouli's principle
12.
To find the temperature of the sun, the following law is used
A.
Charles law
B.
Stefan's fourth power law of radiation
C.
Boyle's law
D.
Kirchhoff's law
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ANSWER :
B. Stefan's fourth power law of radiation