General Science Physics Questions for SSC / UPSC Set 10

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General Science Physics Questions for SSC / UPSC MCQs Set 10 Questions And Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Online free practice Quiz  – General Studies

1 .Electricity is produced through dry cell from
A.  Chemical energy
B.  Thermal energy
C.  Mechanical energy
D.  Nuclear energy
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2 .The unit of electrical power is
A.  Volt
B.  Watt
C.  Kilowatt hour
D.  Ampere
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3 .When you walk on a woolen carpet bring your finger near the metallic handle of a door an electric shock is produced. This is because
A.  charge is transferred from your body to the handle
B.  the temperature of the human body is higher than of the handle
C.  A chemical reaction occurs when you touch the hanle
D.  The human body and the handle arrive at thermal equilibrium by the process
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4 .The product of conductivity and resistivity of a conductor
A.  Depends on pressure applied
B.  Depends on current flowing through conductor
C.  is the same for all conductors
D.  Varies from conductor to conductor
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5 .Who invented the battery?
A.  Volta
B.  Roentgen
C.  Faraday
D.  Maxwell
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6 .The mass number of an atom is determined by-
A.  Adding the number of neutrons and number of electrons
B.  Adding the number of protons and number of electrons
C.  The number of protons only
D.  Adding the number of neutrons and number of protons
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7 .Particle which can be added to thenucleus of an atom without changing itschemical properties are
A.  Electrons
B.  protons
C.  Neutrons
D.  – particles
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8 .The least penetrating power ray is
A.  Ray
B.  X – Ray
C.  γ Ray
D.  Ray
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9 .Heavy water is used as moderator a nuclear reactor. The function of the moderator is
A.  to control the energy released in the reactor
B.  to absorb neutrons and stop the chain reaction
C.  to cool the reactor
D.  to slow down the neutrons to thermal energy
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10 .The main source of enrgy in Sun is:
A.  Nuclear fusion
B.  Nuclear fission
C.  Chemical reaction
D.  Mechanical energy
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11 .The most penetrating radiation out ofthe following is
A.  X - rays
B.  α – rays
C.  β rays
D.  γ rays
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12 .The method of age determination called 'radioactive uranium dating' cannot be used to determine the age of
A.  rocks
B.  fossils and plant bodies
C.  the earth
D.  minerals on earth
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13 .In the nuclear reactors, moderators are used to:
A.  Slow down the neutrons
B.  Generate neutrons
C.  Accelerate neutrons
D.  Absorb the neutrons
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14 .The process of emission of electrons from metal by UV rays is-
A.  Photoelectric emission
B.  Thermionic emission
C.  Secondary emission
D.  Field emission
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15 .X- rays are ………. waves.
A.  Longitudinal
B.  Transverse
C.  Electromagnetic
D.  Elastic
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