GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 126

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 126

1251). A large number of free electrons exist in
A). insulator
B). semi conductor
C). non-metals
D). metals

Answer: metals


   
1252). The excess of pressure inside a spherical bubble of radius r of a liquid of surface tension T is
A). T/r
B). 0
C). 2T/r
D). 4T/r

Answer: 2T/r



   
1253). The refractive index of diamond is
A). 1
B). 1.33
C). 1.6
D). 2.42

Answer: 2.42


   
1254). The digital camera is an input device mainly used to ......... images
A). capture
B). convert
C). connect
D). none of these

Answer: convert


   
1255). Radioactivity was discovered by
A). Pierre Curie
B). Madam Curie
C). Rutherford
D). Henri Becquerel

Answer: Henri Becquerel



1256). What does KDM 916 mean?
A). 9.16% pure gold
B). 90.16% pure gold
C). 9.16% copper
D). 91.6% pure gold

Answer: 91.6% pure gold


   
1257). Fuse wire is a wire of ............. resistance and ............. melting point
A). low, high
B). high, high
C). low, low
D). high, low

Answer: high, low


   
1258). The unit of capacitance is
A). coulomb
B). farad
C). ohm
D). gram

Answer: farad


   
1259). Hydrogen bomb is based on the principle of
A). Nuclear explosion
B). Nuclear fusion
C). Nuclear fission
D). Slow reaction

Answer: Nuclear fusion


   
1260). Positron was discovered by
A). Carl Anderson
B). Dirac
C). Madam Curie
D). Chadwick

Answer: Carl Anderson