Question # 1

Subatomic particles are divided into groups.

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Photon

Laptons

Hadrons

All of these

Absorbed Dose 'D' is defined as

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m/E

E/C

C/m

E/m

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 mass of beta particle is equal to mass of.

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Protons

Electrons

Neutrons

Boron

The SI unit of decay constant is

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m

m^-1

S^-1

Nm^-1

Mass of meason is

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Greater then proton

Less than proton

Equal to proton

Equal to neutron

The particles which do not experience strong force are called.

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Baryons

Hadrons

Mesons

Laptons

Both xenon and caesium each have:

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41 isotopes

36 isotopes

43 isotopes

33 isotopes

GM counter uses

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Alcohol only

Bromine

argon

Neon and bromine

Which of the following are not hadrons.

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Muons

Mesons

Positrons

Neutrons

1 gray is equal to.

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1 JKg-1

1KgJ-1

1JKg

1 JKg-2

Cobalt -60 is the source for

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Alpha rays

Gama rays

Beta rays

Neutron

How many neutrons are there in the nuclide Zn⁶⁶?

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22

30

36

66

Gamma rays from cobalt -60 are used for treatment of.

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Circulation of blood

Cancer

Heart Attack

Thyroid glands

The most abundant isotope of neon is:

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Neon 21

Neon 20

Neon 22

None of above

The charge on Beta particle is

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+e

-e

-2e

None of these

The number of neutron present in a nucleus in a given by

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N = A+Z

N = A- z

N = Z - A

N = A X Z

The charge of an alpha particle is equal to

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-e

+e

-2e

2e

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