General Knowledge

Physics - Section 2

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41.  ………………. is a unit of force specified in the centimetre–gram–second system of units (CGS)
A. Joule
B. coulomb
C. Newton
D. Dyne
E. None of these
42.  Remote Sensing device has an inbuilt source of ………………
A. Infrared Ray
B. UV Rays
C. X-Rays
D. Radio Waves
E. None of these
43.  For a person having hypermetropia, the near point is …………………
A. Greater than 20 cm
B. Lesser than 25cm
C. Greater than 25cm
D. Lesser than 30cm
E. None of these
44.  Supersonic Plan fly with the speed
A. Greater than the half of the speed of the light
B. Greater than the speed of the sound
C. Equal to the speed of the sound
D. Lesser than the speed of the sound
E. None of these
45.  Cryogenic is a science deals with
A. High Temperatures
B. Low Pressure
C. High Pressure
D. Low Temperatures
E. None of these
46.  Lightning rods are mostly made up of ………….
A. Copper
B. Carbon
C. Sodium
D. Nickel
E. None of these
47.  …………………. has the highest pitch
A. House Fly
B. Mosquito
C. Human Being
D. Elephant
E. None of these
48.  If a copper wire is increased to double its length, its resistance will become ……………
A. No change
B. Half
C. Double
D. Triple
E. None of these
49.  An air bubble in water will act like a ………….. lens
A. Fresnel
B. Concave
C. Biconvex
D. Convex
E. None of these
50.  A device which is used to limit the current in an electrical circuit is called ………………
A. Capacitor
B. Resistor
C. inverter
D. Fuse
E. None of these

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