GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 002
11). On a rainy day, small oil films on water show brilliant colours. This is due to
A). dispersion
B). interference
C). diffraction
D). polarization
Answer: interference
12). Lux is the SI unit of
A). intensity of illumination
B). luminous efficiency
C). luminous flux
D). luminous intensity
Answer: intensity of illumination
13). Rectifiers are used to convert
A). Direct current to Alternating current
B). Alternating current to Direct current
C). high voltage to low voltage
D). low voltage to high voltage
Answer: Alternating current to Direct current
14). Pick out the scalar quantity
A). force
B). pressure
C). velocity
D). acceleration
Answer: pressure
15). If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same
A). velocity
B). momentum
C). acceleration
D). kinetic energy
Answer: momentum
16). Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
A). Pressure and Young's modules
B). Planck's constant and Angular momentum
C). Impulse and moment of force
D). Force and rate of change of linear momentum
Answer: Impulse and moment of force
17). Let a thin capillary tube be replaced with another tube of insufficient length then, we find water
A). will overflow
B). will not rise
C). depressed
D). change its meniscus
Answer: will not rise
18). Metals are good conductors of electricity because
A). they contain free electrons
B). the atoms are lightly packed
C). they have high melting point
D). All of the above
Answer: they contain free electrons
19). Of the following properties of a wave, the one that is independent of the other is its
A). amplitude
B). velocity
C). wavelength
D). frequency
Answer: amplitude
20). Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
A). 0.14 m/s
B). 140 m/s
C). 1.4 km/s
D). 14 m/s
Answer: 14 m/s
A). dispersion
B). interference
C). diffraction
D). polarization
Answer: interference
12). Lux is the SI unit of
A). intensity of illumination
B). luminous efficiency
C). luminous flux
D). luminous intensity
Answer: intensity of illumination
13). Rectifiers are used to convert
A). Direct current to Alternating current
B). Alternating current to Direct current
C). high voltage to low voltage
D). low voltage to high voltage
Answer: Alternating current to Direct current
14). Pick out the scalar quantity
A). force
B). pressure
C). velocity
D). acceleration
Answer: pressure
15). If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same
A). velocity
B). momentum
C). acceleration
D). kinetic energy
Answer: momentum
16). Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
A). Pressure and Young's modules
B). Planck's constant and Angular momentum
C). Impulse and moment of force
D). Force and rate of change of linear momentum
Answer: Impulse and moment of force
17). Let a thin capillary tube be replaced with another tube of insufficient length then, we find water
A). will overflow
B). will not rise
C). depressed
D). change its meniscus
Answer: will not rise
18). Metals are good conductors of electricity because
A). they contain free electrons
B). the atoms are lightly packed
C). they have high melting point
D). All of the above
Answer: they contain free electrons
19). Of the following properties of a wave, the one that is independent of the other is its
A). amplitude
B). velocity
C). wavelength
D). frequency
Answer: amplitude
20). Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
A). 0.14 m/s
B). 140 m/s
C). 1.4 km/s
D). 14 m/s
Answer: 14 m/s
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