Question # 1

Which is true for both alpha particle and gama rays.

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They cause ionization in air

They can be deflected by electric field

They can be deflected by magnetic field

The y can penetrate a few millimeters of aluminium

The place for soring the nuclear waste is

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Ocean

Damping in earth

Damping in desert

Bottom of old salt mines

If the following particle have the same energy, which particle has the shortest wave length.

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alpha particle

Neutron

Beta particle

Proton

Subatomic particles are divided into groups.

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Photon

Laptons

Hadrons

All of these

Both Xenon and cesium have

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33 isotopes

34 Isotopes

36 Isotopes

35 Isotopes

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

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Baryons

Leptons

Mesons

Quarks

The early Greeks believed that matter waves was

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Discrete

Continuous

Both continuous and discrete

All of above

The number of Isotopes of cesium are.

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4

32

22

36

X -rays are similar in nature to.

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Gama rays

Beta rays

Alpha rays

Cathode rays

A pair of quark and anti quark makes a.

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Meason

harden

Lapton

Baryon

The quantity of U in the naturally occurring uranium is.

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0.2%

0.3%

0.7%

0.4%

The mass spectrum of naturally occurring neon, showing

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1 isotope

2 isotope

3 isotope

4 isotope

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

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Circulation of blood

Cancer

Heart Attack

Thyroid glands

Marie Curie and Pierre Curie discovered.

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Uranium

Uranium and Radium

Polonium and radium

Radium

In Wilson cloud chamber, ß-particles leave

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Thin and continuous tracks

Thick and continuous tracks

No tracks

Thin and discontinuous tracks

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

Those elements whose charge number z is greater then __________ are unstable:

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80

79

82

83

The most useful tracer is.

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Strontium -90

Iodine -31

Cobalt -60

Carbon -14

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