+2 Physics Unit 8 - Nuclear Physics
Prepared by P. ILAIYARAJA M. Sc. ,B. Ed. , PG ASST IN PHYSICS , GHSS, PANCHANATHIKKULAM EAST, NAGAI DT. ; &www. Padasalai. Net
- 1.
![The nuclear radius of nucleus is
- ProProfs]( "The nuclear radius of nucleus is")
The nuclear radius of nucleus is- A.
(2)
- B.
(1)
- C.
(3)
- D.
(4)
- 2.
![The nuclei are example of - ProProfs]( "The nuclei are example of")
The nuclei are example of- A.
Isotones
- B.
Isomers
- C.
Isotopes
- D.
isobars
- 3.The mass defect of a certain nucleus is found to be 0.03 amu. Its binding energy is
- A.
27.93 MeV
- B.
27.93 eV
- C.
27.93 GeV
- D.
27.93 KeV
- 4.Nuclear fission can be explained by
- A.
Liquid drop model
- B.
Quark model
- C.
Shell model
- D.
Bohr atom model
- 5.The nucleons in a nucleus are attracted by
- A.
Nuclear force
- B.
Magnetic force
- C.
Gravitational force
- D.
Electrostatic force
- 6.The ionisation power is maximum for
- A.
α – particles
- B.
γ – rays
- C.
β − particles
- D.
Neutrons
- 7.The half life period of a certain radioactive element with disintegration constant 0.0693 per day is
- A.
10 days
- B.
14 days
- C.
140 days
- D.
1.4 days
- 8.
![The radio-isotope used in agriculture is
- ProProfs]( "The radio-isotope used in agriculture is")
The radio-isotope used in agriculture is- A.
(2)
- B.
(3)
- C.
(4)
- D.
(1)
- 9.The average energy released per fission is
- A.
200 MeV
- B.
200 meV
- C.
200 GeV
- D.
200 eV
- 10.The explosion of atom bomb is based on the principle of
- A.
uncontrolled fission reaction
- B.
Controlled fission reaction
- C.
Fusion reaction
- D.
Thermonuclear reaction
- 11.
![Anaemia can be diagnosed by
- ProProfs]( "Anaemia can be diagnosed by")
Anaemia can be diagnosed by- A.
(3)
- B.
(2)
- C.
(1)
- D.
(4)
- 12.
![In the nuclear reaction , X-stands for - ProProfs]( "In the nuclear reaction , X-stands for")
In the nuclear reaction , X-stands for- A.
Neutron
- B.
Proton
- C.
Electron
- D.
Deutron
- 13.In β – decay
- A.
Neutron number decreases by one
- B.
Atomic number decreases by one
- C.
mass number decreases by one
- D.
Proton number remains the same
- 14.Isotopes have
- A.
Same proton number but different neutron number
- B.
Same proton number and neutron number
- C.
Same mass number but different atomic number
- D.
Same neutron number but different proton number
- 15.The time taken by the radioactive element to reduce to 1/e times is
- A.
Mean life
- B.
Half life/2
- C.
Half life
- D.
Twice the mean life
- 16.
![The half life period of is 10.1 minute. Its life time is
- ProProfs]( "The half life period of is 10.1 minute. Its life time is")
The half life period of is 10.1 minute. Its life time is- A.
(4)
- B.
(3)
- C.
(2)
- D.
(1)
- 17.Positive rays of the same element produce two different traces in a Bainbridge mass spectrometer. The positive ions have
- A.
Different mass with same velocity
- B.
Different mass with different velocity
- C.
Same mass with same velocity
- D.
Same mass with different velocity
- 18.
![The binding energy of nucleus is - ProProfs]( "The binding energy of nucleus is")
The binding energy of nucleus is- A.
493 MeV
- B.
8.8 MeV
- C.
88 MeV
- D.
41.3 MeV
- 19.
![The ratio of nuclear density to the density of mercury is about
- ProProfs]( "The ratio of nuclear density to the density of mercury is about")
The ratio of nuclear density to the density of mercury is about- A.
(3)
- B.
(2)
- C.
(4)
- D.
(1)
Questions: 19 | Attempts: 2617 | Last updated: Apr 8, 2015
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Sample QuestionThe nuclear radius of nucleus is
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Sample QuestionWhich of the atomic particles has the least mass?
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Sample QuestionIn the Geiger-Marsden experiment, α particles are scattered by gold nuclei. The experimental results indicate that most α particles are
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