Option A: Moderators slow down the neutrons
Option B: Moderators bring the neutrons to rest
Option C: Moderators absorb the neutrons
Option D: Moderators reflect the neutrons
Correct Answer: Moderators slow down the neutrons ✔
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Option A: Alpha rays
Option B: Gamma rays
Option C: Beta rays
Option D: X-rays
Correct Answer: Gamma rays ✔
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Option A: 1 rem per week
Option B: 5 rem per week
Option C: 4 rem per week
Option D: 3 rem per week
Correct Answer: 5 rem per week ✔
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Option A: Ordinary water
Option B: Heavy water
Option C: Lead
Option D: Aluminum
Correct Answer: Lead ✔
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Option A: Cloud chamber
Option B: Linear accelerator
Option C: A mass spectrograph
Option D: Wilson cloud chamber
Correct Answer: Linear accelerator ✔
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Option A: X-rays
Option B: Gamma rays
Option C: UV-rays
Option D: IR-rays
Correct Answer: Gamma rays ✔
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Option A: Mass is not conserved
Option B: Energy is not conserved
Option C: Momentum is not conserved
Option D: The chargee is not conserved
Correct Answer: Momentum is not conserved ✔
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Alpha particles possess greater penetration power than that of beta particles due to its__________?
Option A: Smaller ionization power
Option B: Greater ionization power
Option C: Neither greater nor smaller ionization power
Option D: Same ionization power
Correct Answer: Smaller ionization power ✔
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Option A: Due to the electrostatic force of attraction
Option B: Due to the electrostatic force of repulsion
Option C: Due to a direct collision
Option D: Due to the gravitational force
Correct Answer: Due to the electrostatic force of repulsion ✔
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Option A: Chargeless
Option B: Massless
Option C: Highly penetrating
Option D: All of above
Correct Answer: Highly penetrating ✔
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Option A: Light waves
Option B: Heat waves
Option C: Microwaves
Option D: γ-rays
Correct Answer: γ-rays ✔
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Option A: Sr-90
Option B: I-131
Option C: CA-41
Option D: C-14
Correct Answer: C-14 ✔
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Option A: α-rays
Option B: β-rays
Option C: γ-rays
Option D: Neutron-rays
Correct Answer: Neutron-rays ✔
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Option A: Trajectory
Option B: Range
Option C: Firing level
Option D: Limit
Correct Answer: Range ✔
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Option A: Refrigeration
Option B: Aerosol spray
Option C: Plastic foam industry
Option D: All of above
Correct Answer: All of above ✔
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Option A: Energy
Option B: Charge
Option C: Mass
Option D: MomentumB.
Correct Answer: ✔
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Option A: ZnS
Option B: Barium platinocyanide
Option C: Calcium tungstate
Option D: All of above
Correct Answer: All of above ✔
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Option A: Fast counting
Option B: Extremely fast counting
Option C: Slow counting
Option D: All situations
Correct Answer: Slow counting ✔
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Option A: 10 times more
Option B: 100 times more
Option C: 100 times less
Option D: 10 times less
Correct Answer: 100 times more ✔
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Option A: α-particle source
Option B: β-particle source
Option C: γ-rays source
Option D: Neutron source
Correct Answer: α-particle source ✔
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Option A: Loses a small fraction of its energy
Option B: Losses most of its energy
Option C: Loses no energy at all
Option D: Loses all of its energy
Correct Answer: Losses most of its energy ✔
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Option A: X-rays
Option B: α-rays
Option C: β-rays
Option D: γ-rays
Correct Answer: X-rays ✔
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Option A: Through direct collision
Option B: Through electrostatic attraction
Option C: Through electrostatic repulsion
Option D: All of above
Correct Answer: Through electrostatic repulsion ✔
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Option A: Plus one
Option B: Plus two
Option C: Minus two
Option D: Minus one
Correct Answer: Plus two ✔
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Option A: α-rays
Option B: β-rays
Option C: γ-rays
Option D: B and C have equal antiseptic propertie
Correct Answer: γ-rays ✔
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Option A: Cobalt-60
Option B: Strontium-90
Option C: Carbon-14
Option D: Nickel-63
Correct Answer: Cobalt-60 ✔
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Option A: α-rays
Option B: β-rays
Option C: γ-rays
Option D: X-rays
Correct Answer: γ-rays ✔
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Option A: Rectilinear
Option B: Curved
Option C: Zig-zag or erratic
Option D: Elliptical
Correct Answer: Zig-zag or erratic ✔
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Option A: Protons
Option B: Electrons
Option C: Neutrons
Option D: Nothing
Correct Answer: Electrons ✔
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Option A: Net energy is conserved
Option B: Net charge is conserved
Option C: Net momentum is conserved
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: Fission reaction
Option B: Fusion reaction
Option C: Chain reaction
Option D: Chemical reaction
Correct Answer: Chain reaction ✔
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Option A: Hardness
Option B: Density
Option C: Mass
Option D: Half life
Correct Answer: Half life ✔
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Option A: 92U235
Option B: 92U238
Option C: 92U234
Option D: 92U239
Correct Answer: 92U238 ✔
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Option A: Heat energy is released
Option B: Nuclear energy is released
Option C: Chemical energy is released
Option D: Light energy is released
Correct Answer: Nuclear energy is released ✔
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Option A: 3.74 x 109 disintegration per sec
Option B: 3.70 x 1010 disintegration per sec
Option C: 3.55 x 1010 disintegration per sec
Option D: 3.60 x 1010 disintegration per sec
Correct Answer: 3.70 x 1010 disintegration per sec ✔
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Option A: 3.74 x 109 disintegration per sec
Option B: 3.70 x 1010 disintegration per sec
Option C: 3.55 x 1010 disintegration per sec
Option D: 3.60 x 1010 disintegration per sec
Correct Answer: 3.70 x 1010 disintegration per sec ✔
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Option A: 224 – 84
Option B: 220 – 80
Option C: 222 – 86
Option D: 226 – 87
Correct Answer: 222 – 86 ✔
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Option A: Smaller
Option B: Greater than 82
Option C: Same
Option D: Sometimes smaller some times greater
Correct Answer: Greater than 82 ✔
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Option A: Molecules
Option B: Ions
Option C: Elements
Option D: Isotopes
Correct Answer: Elements ✔
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Option A: Isotopes
Option B: Isobars
Option C: Isotones
Option D: Isomers
Correct Answer: Isobars ✔
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Option A: 1.67 x 10-31 kg
Option B: 1.67 x 10-27 kg
Option C: 9.1 x 10-31 kg
Option D: 1.67 x 10-19 kg
Correct Answer: 1.67 x 10-27 kg ✔
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Option A: Antiproton
Option B: Positron
Option C: Gamma rays
Option D: Photon
Correct Answer: Positron ✔
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Option A: Plus 1.6 x 10-19C
Option B: Zero
Option C: Minus 1.6 x 10-19C
Option D: No definite charge
Correct Answer: Zero ✔
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Option A: Ampere
Option B: Maxwell
Option C: Millikan
Option D: Thomson
Correct Answer: Millikan ✔
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Option A: α-rays
Option B: β-rays
Option C: γ-rays
Option D: All of above have the same speed
Correct Answer: γ-rays ✔
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Option A: Iron rods
Option B: Graphite rods
Option C: Cadmium rods
Option D: Platinum rods
Correct Answer: Cadmium rods ✔
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Option A: Binding energy per nucleon
Option B: Energy of decay
Option C: Destruction energy
Option D: All of above
Correct Answer: Binding energy per nucleon ✔
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Option A: N=Noe-λt
Option B: N=Noeλt
Option C: N=Noe-λt/2
Option D: No=N(1+eλt)
Correct Answer: N=Noe-λt ✔
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Option A: 10-12m
Option B: 10-11m
Option C: 10-10m
Option D: 10-14m
Correct Answer: 10-10m ✔
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Option A: Neutron
Option B: Proton
Option C: Electron
Option D: Positron
Correct Answer: Proton ✔
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Option A: The binding energy of the nucleus
Option B: Packing fraction
Option C: The average energy of the nucleus
Option D: All of above are one and the same thing
Correct Answer: Packing fraction ✔
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Option A: Proton-proton
Option B: Proton-neutron
Option C: Neutron-neutron
Option D: All of the above
Correct Answer: All of the above ✔
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Option A: Greater than 72
Option B: Greater than 82
Option C: Greater than 92
Option D: Greater than 102
Correct Answer: Greater than 92 ✔
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Option A: 200MeV
Option B: 40MeV
Option C: 30MeV
Option D: 20MeV
Correct Answer: 200MeV ✔
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Option A: A & B
Option B: B & C
Option C: C & A
Option D: A B & C
Correct Answer: C & A ✔
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Option A: Can exist inside the nucleus
Option B: Cannot exist inside the nucleus
Option C: Can exist both inside and outside the nucleus
Option D: Do not know
Correct Answer: Do not know ✔
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Option A: X-rays
Option B: B-rays
Option C: γ-rays
Option D: All have the equal penetrating powe
Correct Answer: γ-rays ✔
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Option A: Nucleon
Option B: Meson
Option C: Boson
Option D: Quartz
Correct Answer: Nucleon ✔
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Option A: Antiproton
Option B: Antineutron
Option C: Positron
Option D: All of above
Correct Answer: All of above ✔
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Option A: Greater than the critical size
Option B: Less than the critical size
Option C: Equal to the critical size
Option D: All of above can build up a change reaction
Correct Answer: Greater than the critical size ✔
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Option A: 1.66 x 10-27kg
Option B: 166 x 10-15ng
Option C: 166 x 10-20g
Option D: All of above
Correct Answer: All of above ✔
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Option A: Energy is absorbed
Option B: Energy is released
Option C: Mass is increased due to energy absorption
Option D: Mass is reduced due to the energy released
Correct Answer: Energy is released ✔
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Option A: 92
Option B: 235
Option C: 143
Option D: Different for different isotopes
Correct Answer: Different for different isotopes ✔
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Option A: J.J.Thomson model
Option B: Rutherfords model
Option C: Bohrs model
Option D: All of the above laws contradict the statement
Correct Answer: J.J.Thomson model ✔
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