GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 097
961). When the two balls collide elastically, then
A). only momentum is conserved
B). kinetic energy of the system is alone conserved
C). both kinetic energy and momentum are conserved
D). none of these
Answer: both kinetic energy and momentum are conserved
962). Which of the following is derived unit?
A). Mass
B). Velocity
C). Length
D). Time
Answer: Velocity
963). The planet between Earth and Mercury is
A). Venus
B). Mars
C). Jupiter
D). Neptune
Answer: Venus
964). Wind velocity is measured by
A). pH meter
B). Thermometer
C). Anemometer
D). Luxmeter
Answer: Anemometer
965). Noise pollution results when the sound increases beyond _______ decibels
A). 80
B). 120
C). 45
D). 200
Answer: 120
966). Match List-I with List-II and select your answer using the codes given below:
List-I List-II
a) Astigmatism 1. concave tens
b) Cataract 2. cylindrical lens
c) Hypermetropia 3. object in the lens
d) Myopia 4. convex lens
Below codes are given in A B C D order
A). 3 2 1 4
B). 4 1 2 3
C). 3 2 4 1
D). 2 3 4 1
Answer: 2 3 4 1
967). The velocity of sound in a gas is independent of
A). temperature
B). humidity
C). gravity
D). pressure
Answer: humidity
968). An astronaut in an earth satellite will observe the sky is
A). white
B). black
C). deep blue
D). deep red
Answer: black
969). The colour of star is an indication of it's
A). size
B). distance from the earth
C). weight
D). temperature
Answer: temperature
970). A rocket can go vertically upwards in the earth's atmosphere because
A). it is lighther than air
B). of the gravitational pull of the sun
C). it has a fan which displaces more air per unit time than the weight of the rocket
D). of the forces exerted on the rocket by gases ejected by it
Answer: of the forces exerted on the rocket by gases ejected by it
A). only momentum is conserved
B). kinetic energy of the system is alone conserved
C). both kinetic energy and momentum are conserved
D). none of these
Answer: both kinetic energy and momentum are conserved
962). Which of the following is derived unit?
A). Mass
B). Velocity
C). Length
D). Time
Answer: Velocity
963). The planet between Earth and Mercury is
A). Venus
B). Mars
C). Jupiter
D). Neptune
Answer: Venus
964). Wind velocity is measured by
A). pH meter
B). Thermometer
C). Anemometer
D). Luxmeter
Answer: Anemometer
965). Noise pollution results when the sound increases beyond _______ decibels
A). 80
B). 120
C). 45
D). 200
Answer: 120
966). Match List-I with List-II and select your answer using the codes given below:
List-I List-II
a) Astigmatism 1. concave tens
b) Cataract 2. cylindrical lens
c) Hypermetropia 3. object in the lens
d) Myopia 4. convex lens
Below codes are given in A B C D order
A). 3 2 1 4
B). 4 1 2 3
C). 3 2 4 1
D). 2 3 4 1
Answer: 2 3 4 1
967). The velocity of sound in a gas is independent of
A). temperature
B). humidity
C). gravity
D). pressure
Answer: humidity
968). An astronaut in an earth satellite will observe the sky is
A). white
B). black
C). deep blue
D). deep red
Answer: black
969). The colour of star is an indication of it's
A). size
B). distance from the earth
C). weight
D). temperature
Answer: temperature
970). A rocket can go vertically upwards in the earth's atmosphere because
A). it is lighther than air
B). of the gravitational pull of the sun
C). it has a fan which displaces more air per unit time than the weight of the rocket
D). of the forces exerted on the rocket by gases ejected by it
Answer: of the forces exerted on the rocket by gases ejected by it
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