Question # 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

Various types of cancer are treated by

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Carbon -14

Nickel -63

Cobalt -60

Strontium -90

The reciprocal of decay construct lamda of a radioactive element is.

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Half life

Mean life

Curie

total life

By emitting Beta particle and gama particle simultaneously the nucleolus changes in its charges by

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N

N/2

N/4

3N/4

The early Greeks believed that matter waves was

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Discrete

Continuous

Both continuous and discrete

All of above

The most useful tracer is.

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Strontium -90

Iodine -31

Cobalt -60

Carbon -14

The particles which do not experience strong force are called.

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Baryons

Hadrons

Mesons

Laptons

The charge on Beta particle is

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+e

-e

-2e

None of these

The most abundant isotope of neon is:

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Neon 21

Neon 20

Neon 22

None of above

Which of the following basic force is able to provide an attraction between two neutrons:

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Electrostatic and nuclear b

Electrostatic and gravitational

Gravitational and strong nuclear

Only nuclear force

The number of Isotopes of cesium are.

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4

32

22

36

For workers in nuclear facilities is, a weekly does of is normally considered safe

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1.0 msv

5.0 msv

2.0 msv

3.0 msv

Hydrogen bomb is an example of.

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Nuclear fission

Nuclear fusion

Chain reaction

Chemical reaction

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

Cobalt -60 is the source for

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Alpha rays

Gama rays

Beta rays

Neutron

A particles equal or greater in mass than of protons are called.

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Baryons

Leptons

Mesons

Quarks

Cosmic rays consist of

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Protons

High energy photons

Positron

All of above

When a nucleus emits alpha particle its atomic mass decreases by

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1

2

3

4

There is no charge in A and Z of any radioactive element by the emission of.

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Alpha particle

Beta particle

Gama particle

X- rays

The energy equivalent of 1 kg of matter is about:

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10^-15 J

1 J

10^-12J

10^-17J

The mass of proton in amu is:

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1.07276

1.7276

1.007276

1.0007276

The mass of beta particle is equal to the mass

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Proton

Neutron

Electron

Photon

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