- (A) Burning of coal
- (B) Rusting of iron
- (C) The AgCl formation by the reaction of AgNO3 and NaCl
- (D) None of the above
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Charge on electron was discovered by?
- (A) Rutherford
- (B) Stonely
- (C) Millikan
- (D) None of the above
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Which neutrons are more effective for fission process?
- (A) Fast neutrons
- (B) Slow neutrons
- (C) Both A & B
- (D) None of the above
-
Speed of fast neutron is __ energy.
- (A) 1.1 Mev
- (B) 1.2 Mev
- (C) 1.3 Mev
- (D) 1.4 Mev
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Speed of slow neutron is below __ energy.
- (A) 0.5 eV
- (B) 1 eV
- (C) 1.5 eV
- (D) 2 eV
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Free neutron decays into?
- (A) Proton, Electron, Neutrino
- (B) Proton, Electron, Deuterium
- (C) Proton, Electron, Protrium
- (D) Proton, Electron, Deuteron
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Which type of cathode is used to focus cathode rays on a platinum foil?
- (A) Convex cathode
- (B) Concave cathode
- (C) Straight cathode
- (D) All of the above
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Mass of electron is __ times less than mass of proton.
- (A) 1837
- (B) 1838
- (C) 1836
- (D) 1839
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e/m for positive rays is __ e/m for negative ray.
- (A) Smaller than
- (B) Larger than
- (C) Equal to
- (D) None of the above