GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 119
1181). When the velocity of a particle travelling with a velocity nearly equal to the velocity of light, increases, its mass
A). increases
B). decreases
C). remains the same
D). none of these
Answer: remains the same
1182). The type of ray that appears to originate outside the earth is
A). X-ray
B). Cosmic ray
C). Alpha ray
D). Beta ray
Answer: Cosmic ray
1183). In fluorescent tubelight
A). visible light is converted into visible light
B). visible light is converted into ultraviolet light
C). ultraviolet light is converted into ultraviolet light
D). ultraviolet light is converted into visible light
Answer: ultraviolet light is converted into visible light
1184). The radius of curvature of concave mirror is 20 cm. Its focal length is
A). 5cm
B). 10cm
C). 20 cm
D). 40 cm
Answer: 10cm
1185). The electrical energy consumed by a 3 kW stove which is switched on for 6 hours is
A). 2 units
B). 18 units
C). 0.5 units
D). 500 units
Answer: 18 units
1186). Which of the following are primary colours?
A). Red, Green and Violet
B). Blue, Cyan and Magenta
C). Red, Cyan and Blue
D). Red, Green and Blue
Answer: Red, Green and Blue
1187). The relation between coefficient of linear expansion (α - Alpha) and the coefficient of volume expansion (γ - Gamma) is .
A). α=3γα
C). γ=2α
D). γ=3α
Answer: γ=3α
1188). The radio-isotope used to check the effective functioning of heart is
A). I^131
B). Na^24
C). Fe^59
D). P^32
Answer: Na^24
1189). Metals are electropositive because they
A). accept electrons
B). donate electrons
C). are neutral
D). have electrons
Answer: donate electrons
1190). A body goes at 2 m/s towards north and after 10 seconds at 2 m/s towards east. Its acceleration is
A). √2ms^−2
B). 2√2ms^−2
C). 0.2√2ms^−2
D). 2ms^−2
Answer: 2√2ms^−2
A). increases
B). decreases
C). remains the same
D). none of these
Answer: remains the same
1182). The type of ray that appears to originate outside the earth is
A). X-ray
B). Cosmic ray
C). Alpha ray
D). Beta ray
Answer: Cosmic ray
1183). In fluorescent tubelight
A). visible light is converted into visible light
B). visible light is converted into ultraviolet light
C). ultraviolet light is converted into ultraviolet light
D). ultraviolet light is converted into visible light
Answer: ultraviolet light is converted into visible light
1184). The radius of curvature of concave mirror is 20 cm. Its focal length is
A). 5cm
B). 10cm
C). 20 cm
D). 40 cm
Answer: 10cm
1185). The electrical energy consumed by a 3 kW stove which is switched on for 6 hours is
A). 2 units
B). 18 units
C). 0.5 units
D). 500 units
Answer: 18 units
1186). Which of the following are primary colours?
A). Red, Green and Violet
B). Blue, Cyan and Magenta
C). Red, Cyan and Blue
D). Red, Green and Blue
Answer: Red, Green and Blue
1187). The relation between coefficient of linear expansion (α - Alpha) and the coefficient of volume expansion (γ - Gamma) is .
A). α=3γα
C). γ=2α
D). γ=3α
Answer: γ=3α
1188). The radio-isotope used to check the effective functioning of heart is
A). I^131
B). Na^24
C). Fe^59
D). P^32
Answer: Na^24
1189). Metals are electropositive because they
A). accept electrons
B). donate electrons
C). are neutral
D). have electrons
Answer: donate electrons
1190). A body goes at 2 m/s towards north and after 10 seconds at 2 m/s towards east. Its acceleration is
A). √2ms^−2
B). 2√2ms^−2
C). 0.2√2ms^−2
D). 2ms^−2
Answer: 2√2ms^−2
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