Question # 1

The force which is responsible for the breaking up of the radioactive element is.

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Weak nuclear force

Strong nuclear force

Electromagnetic force

Gravitational force

The total charge of any nucleus is:

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Ze

Z

Both a and b

None of above

Binding energy per nucleus for uranium is above:

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6.7 Mev

7.7 Mev

6.9 MeV

7.9 MeV

Electrons are

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Hadrons

Laptons

Quarks

Baryons

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

Mass equivalent of 931 MeV energy is:

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6.02 x 10^-23 kg

1.766 x 10^-27kg

2.67 x 10^-29kg

6.02 x 10^-87kg

The mass spectrum of naturally occurring neon shows the most abundant isotope has atomic mass.

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19

20

21

22

How many times, the alpha particle is more massive than electrons.

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6332

7332

8332

9332

Which of the following is similar to electron.

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Beta particle

Alpha particle

Neutron

Proton

Energy needed to produce an electron hole in solid state detector is.

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1 to 2 eV

3 to 4 eV

6 to 7 eV

8 to 9 eV

Nuclear fission chain reaction is controlled by using.

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Cadmium rods

Iron rods

Platinum rods

Steel rods

The background radiation to which we are exposed, on the average is.

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1 mSv per year

2 mSv per year

3 mSv per year

4 mSv per year

The binding energy per nucleon is maximum for

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Helium

Iron

Potassium

Radium

Which one of the following is not affected by electric or magnetic field.

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Beta rays

Gama ryas

Alpha rays

Electron

The first atomic reactor was introduced by

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Currie

Enrico Fermi

Newton

Bohr

Which one belongs to lepton's group

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Electron

Muons

Neutrons

All of these

The particles which do not experience strong force are called.

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Baryons

Hadrons

Mesons

Laptons

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