GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 035
341). When the moon is near the horizon, it appears bigger because of
A). atmospheric refraction
B). scattering of light
C). diffraction
D). total internal reflection
Answer: atmospheric refraction
342). The image formed on the retina of a human eye is
A). virtual and inverted
B). virtual and erect
C). real and erect
D). real and inverted
Answer: real and inverted
343). 1000 water droplets having equal radius and equal charge on each coalesce to form a single drop. The electric potential of big drop will be increased by
A). 10 times
B). 100 times
C). 1000 times
D). 1000^2 times
Answer: 1000 times
344). If a clock based on oscillating pendulum is taken from earth to moon, it will
A). become slow
B). become fast
C). give same time as on earth
D). stop working
Answer: become slow
345). What is the frequency of a wave whose time period is 0.05 second ?
A). 5Hz
B). 10 Hz
C). 20 Hz
D). 40 Hz
Answer: 20 Hz
346). A total of 4900 joules energy was expended in lifting a mass of 50kg. The mass was raised to a height of
A). 5m
B). 10m
C). 98m
D). 980m
Answer: 10m
347). How much heat is required to raise the temperature of 150 g of iron from 20∘C to 25∘C? (Specific heat of iron =480JKg^−1∘C^−1
A). 90J
B). 180J
C). 360J
D). 720J
Answer: 360J
348). Although fog consists of fine drops of water, we cannot see clearly through it because
A). the light rays undergo total internal reflection A in the drops
B). fine drops of water in fog polarise light
C). the fine drops are opaque to light
D). the drops scatter most of the light
Answer: the drops scatter most of the light
349). Consider the following statements : The simple pendulums with masses of the balls m1 and m2 (m1 > m2) are swung in vacuum. Then
I. both will continue to swing forever
II. pendulum with ball of mass m1 will stop first
III. pendulum with string of larger length will stop later
Which of these statements is/are correct?
A). I only
B). II only
C). III only
D). II and III
Answer: I only
350). A planet of Solar system has mass four times and diameter twice than these of earth. The value of g on this planet is
A). 4.9 ms^−2
B). 9.8 ms^−2
C). 19.6 ms^−2
D). 39.2 ms^−2
Answer: 9.8 ms^−2
A). atmospheric refraction
B). scattering of light
C). diffraction
D). total internal reflection
Answer: atmospheric refraction
342). The image formed on the retina of a human eye is
A). virtual and inverted
B). virtual and erect
C). real and erect
D). real and inverted
Answer: real and inverted
343). 1000 water droplets having equal radius and equal charge on each coalesce to form a single drop. The electric potential of big drop will be increased by
A). 10 times
B). 100 times
C). 1000 times
D). 1000^2 times
Answer: 1000 times
344). If a clock based on oscillating pendulum is taken from earth to moon, it will
A). become slow
B). become fast
C). give same time as on earth
D). stop working
Answer: become slow
345). What is the frequency of a wave whose time period is 0.05 second ?
A). 5Hz
B). 10 Hz
C). 20 Hz
D). 40 Hz
Answer: 20 Hz
346). A total of 4900 joules energy was expended in lifting a mass of 50kg. The mass was raised to a height of
A). 5m
B). 10m
C). 98m
D). 980m
Answer: 10m
347). How much heat is required to raise the temperature of 150 g of iron from 20∘C to 25∘C? (Specific heat of iron =480JKg^−1∘C^−1
A). 90J
B). 180J
C). 360J
D). 720J
Answer: 360J
348). Although fog consists of fine drops of water, we cannot see clearly through it because
A). the light rays undergo total internal reflection A in the drops
B). fine drops of water in fog polarise light
C). the fine drops are opaque to light
D). the drops scatter most of the light
Answer: the drops scatter most of the light
349). Consider the following statements : The simple pendulums with masses of the balls m1 and m2 (m1 > m2) are swung in vacuum. Then
I. both will continue to swing forever
II. pendulum with ball of mass m1 will stop first
III. pendulum with string of larger length will stop later
Which of these statements is/are correct?
A). I only
B). II only
C). III only
D). II and III
Answer: I only
350). A planet of Solar system has mass four times and diameter twice than these of earth. The value of g on this planet is
A). 4.9 ms^−2
B). 9.8 ms^−2
C). 19.6 ms^−2
D). 39.2 ms^−2
Answer: 9.8 ms^−2
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