Question # 1

Which of the following are not hadrons.

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Muons

Mesons

Positrons

Neutrons

James chadwick discovered:

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Proton

Positron

Neutron

Electron

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

Both Xenon and cesium have

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33 isotopes

34 Isotopes

36 Isotopes

35 Isotopes

Which of the following is typical source of alpha particle.

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Strontium -94

Radon -222

Cobalt -60

Zic sulphate

The most useful tracer is.

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Strontium -90

Iodine -31

Cobalt -60

Carbon -14

A device that shows the visible path of ionizing particle is called.

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GM counter

Solid state detector

Scalar

Wilson cloud chamber

The binding energy for_________ is maximum.

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Copper

Glass

Iron

Aluminum

The radioactive decay obeys the law

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The total charge of any nucleus is:

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Ze

Z

Both a and b

None of above

The charge number of Ba is.

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197

141

56

85

Two up quarks and one down quarks makes a

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Proton

Newton

Photon

Meson

The number of Neutron is²³⁸U₉₂is

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92

238

146

330

The types of quacks are.

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2

3

4

6

Which pair belongs to hadrons.

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Protons and Neutrons

Neutrons and electrons

Photons and electrons

positrons and electrons

The activity of radioactive sample

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Is constant

Increases with time

Decreases linearly with time

Decreases exponentially with time

Which of the following is similar to electron.

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Beta particle

Alpha particle

Neutron

Proton

Charge on an electron was determined by

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Ampere

Millikan

Maxwell

Bohr

The moderator used in a nuclear reactor

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Sodium

Uranium

Graphite

Cadmium

The half life of radioactive elements depends upon

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Temperature

Nature of element

Amount of the radioactive substance

Pressure

Absorbed Dose 'D' is defined as

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m/E

E/C

C/m

E/m

The SI unit of decay constant is

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m

m^-1

S^-1

Nm^-1

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