GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 085

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 085

841). Atom bomb is based on the principle of
A). pair production
B). annihilation of matter
C). nuclear fission
D). nuclear fusion

Answer: nuclear fission


   
842). Proton carries
A). a positive charge
B). a negative charge
C). no charge
D). none of these

Answer: a positive charge


   
843). Electrons are accelerated to very high energies by means of
A). thyrotrons
B). cyclotrons
C). magnetron
D). betatrons

Answer: betatrons

 

844). What is the name of the nuclear reactor at Trombay?
A). Bhaba
B). Apsara
C). Aryabhatta
D). Venus

Answer: Apsara


   
845). Short sightedness is corrected by
A). convex lens
B). concave lens
C). convex mirror
D). none of these

Answer: concave lens
   


846). "Volume of a gas is inversely proportional to pressure," This is
A). Boyel's law
B). Charles law
C). Dalton law
D). Henry's law

Answer: Boyel's law


   
847). A spring balance ls pulled by 2 persons equally with 20 newton force on its two ends.
Thus It will show a reading of
A). 20 newtons
B). 40 newtons
C). zero
D). 10 newtons

Answer: 20 newtons


   
848). Day and night are the result of
A). earth's rotation around itself
B). earth's revolution around the sun
C). both the above reasons
D). none of these

Answer: earth's rotation around itself


   
849). A body executes simple harmonic motion. Its velocity at the mid point is
A). zero
B). average value
C). maximum
D). none of these

Answer: maximum


   
850). Which Of the following is an extensive property?
A). Boiling point
B). Melting point
C). Viscosity
D). Internal energy

Answer: Internal energy