GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 116

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 116

1151). Theory of relativity was proposed by which one of the following scientists in the year 1905?
A). Rutherford
B). Thomson
C). Bohr
D). Einstein

Answer: Einstein


   
1152). The moderator used in the nuclear reactor at Madras atomic power station in Kalpakkam is
Note: Fast Breed Reactor Kalpakkam. , No need moderator for Fast Breed Reactor.
A). water (H20)
B). graphite
C). heavy water (D20)
D). none of these

Answer: none of these


   
1153). Radio carbon in nature is produced as a result of
A). the action of UV rays on ordinary carbon
B). the action of IR rays on ordinary carbon
C). the action of cosmic rays on earth's atmospheric nitrogen
D). the action of X rays on ordinary carbon

Answer: the action of cosmic rays on earth's atmospheric nitrogen


   
1154). The speed of sound is higher the following mediums?
A). Liquids
B). Solids
C). Gases
D). Same in all

Answer: Solids

   
1155). The huge amount of energy released in nuclear fission and fusion reaction is due to the conversion of
A). chemical energy into heat energy
B). protons into neutrons
C). mass into energy, according to Einstein's equation
D). mechanical energy into heat energy

Answer: mass into energy, according to Einstein's equation



1156). A person is moving towards a plane mirror with a velocity of 1 m / sec. The image will approach the moving person with a relative velocity of
A). 0.5 m/sec
B). 1 m / sec
C). 2m/sec
D). 3m/sec.

Answer: 2m/sec


   
1157). Which of the following would be the most suitable for making an electromagnet?
A). Copper
B). Tungsten
C). Soft iron
D). Steel

Answer: Soft iron

   
1158). An electric bulb has a filament made
A). copper
B). iron
C). lead
D). tungsten

Answer: tungsten


   
1159). The nucleus of an atom contains
A). protons and neutrons
B). protons and electrons
C). neutrons and electrons
D). neutrons only

Answer: protons and neutrons


   
1160). Which of the following falls down faster vacuum?
A). Wooden ball
B). Feather
C). Steel ball
D). All will fall down at the same speed because no air resistance in vacuum

Answer: All will fall down at the same speed because no air resistance in vacuum