GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 032

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 032

311). Consider the following metals:
1. Platinum
2. Gold
3. Copper
4. Lead
Their correct arrangement in the increasing order of density is:
A). 3, 4, 2, 1
B). 4, 3, 2, 1
C). 1, 2, 3, 4
D). 3, 4, 1, 2

Answer: 3, 4, 2, 1

   
312). The earth and the moon are about the same distance from the sun, yet on the average the earth is much warmer than the moon. Why?
A). The moon is much smaller than the earth
B). Nights on the moon are much longer
C). The moon has almost no atmosphere
D). The surface of the moon is darker

Answer: The moon has almost no atmosphere


   
313). If a proton and an electron are at equal distance from a positively charged plate, then,

A). both the particles will move to the right with equal acceleration
B). electron will move to the right with a much smaller acceleration
C). proton will move towards the plate with a much smaller acceleration
D). electron will move towards the plate with an acceleration nearly 2000 times that of the proton.

Answer: electron will move towards the plate with an acceleration nearly 2000 times that of the proton.


   
314). There is no Doppler effect for sound when
A). the source of sound recedes from the observer
B). the source of sound approaches the observer
C). the source of sound moves at right angles to the line joining the source and the observer
D). the source produces a sound of very high frequency

Answer: the source of sound moves at right angles to the line joining the source and the observer


   
315). Match List I with List II and select the correct answer using the codes given below the lists.
List I(quantity)                             List II(unit)
Force                                            1. watt
Energy                                          2. pascal
Power                                           3. newton
Pressure                                       4. joule

A B C D
A). 1 3 2 4
B). 2 1 4 3
C). 3 4 1 2
D). 4 2 3 1

Answer: 3 4 1 2



316). Consider the following electromagnetic waves of different wavelengths.
1. Ultraviolet
2. Microwaves
3. X-rays
4. Radio waves
Their correct arrangement in the ascending order of wavelength is
A). 3, 1, 2, 4
B). 4, 2, 1, 3
C). 1, 2, 3, 4
D). 2. 3, 4, 1

Answer: 3, 1, 2, 4

   
317). A star with a mass of less than 1.4 solar masses will probably end its life as a
A). white dwarf
B). neutron star
C). black hole
D). pulsar

Answer: white dwarf


   
318). Match List I with List ll and select the correct answer using the codes given below the lists:
List I (Planets)                           List II (Moons)
A. Mars                                       1. Titan
B. Saturn                                    2. Miranda
C. Uranus                                    3. Phobois
D. Jupiter                                    4. Ganymede

A). A-1, B-3, C-2, D-4
B). A-3, B-1, C-2, D-4
C). A-3, B-1, C-4, D-2
D). A-2, B-1, C-3, D-4

Answer: A-3, B-1, C-2, D-4


   
319). Rocks of which planet are likely to float on water?
A). Mars
B). Venus
C). Satum
D). Jupiter

Answer: Satum


   
320). Among the moons of the planets, the largest is
A). Titan of Saturn
B). Ganymede of Jupiter
C). Callisto of Jupiter
D). Rhea of Saturn

Answer: Ganymede of Jupiter