GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 122

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 122

1211). The velocity of electromagnetic waves is
A). 3×10^8ms^−1
B). 330ms^−1
C). 30×10^8ms^−1
D). 3×10^−8ms^−1

Answer: 3×10^8ms^−1



   
1212). Raindrops assume spherical shape due to
A). Gravitational force
B). Surface tension
C). Centripetal force
D). Centrifugal force

Answer: Surface tension


   
1213). The unit for solid angle is
A). radian
B). steradian
C). metre
D). no unit

Answer: steradian


   
1214). The substance which undergoes the process of sublimation is
A). Wax
B). ice
C). sugar
D). iodine

Answer: iodine


   
1215). Which of the following is liquid at room temperature?
A). Iodine
B). Bromine
C). Invar
D). Duralumin

Answer: Bromine



1216). Inertia of a body has direct dependence on
A). area
B). volume
C). mass
D). velocity

Answer: mass


   
1217). The radio isotope used in the treatment of cancer is
A). Radio cobalt
B). Radioactive iron
C). Radio iodine
D). Radioactive sodium

Answer: Radio iodine


   
1218). The path of a projectile is
A). Ellipse
B). Straight line
C). Parabola
D). Circle

Answer: Parabola


   
1219). The minimum distance between the sound source and the object to produce clear echo is
A). 5 m
B). 10 m
C). 17 m
D). 25 m

Answer: 17 m


   
1220). Unit of Intensity of sound is
A). farad
B). decibel
C). ohm
D). Pascal

Answer: decibel