Question # 1

The mass spectrum of naturally occurring neon, showing

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1 isotope

2 isotope

3 isotope

4 isotope

Binding energy per nucleus for uranium is above:

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6.7 Mev

7.7 Mev

6.9 MeV

7.9 MeV

Which one belongs to lepton's group

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Electron

Muons

Neutrons

All of these

Two down and one up quarks make

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Proton

Neutron

~~photon~~

Positron

The most useful tracer is.

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Strontium -90

Iodine -31

Cobalt -60

Carbon -14

In nuclear radiation , track of alpha particle is.

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Thin

Discontinuous

Erratic

Continuous

Charge on an electron was determined by

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Ampere

Millikan

Maxwell

Bohr

The place for soring the nuclear waste is

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Ocean

Damping in earth

Damping in desert

Bottom of old salt mines

Circulation of blood is studied by radio isotope.

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Cobalt -60

Phosphorus -32

Sodium -24

Iodine -131

The Unit of decay constant.

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Second

(second)-1

m-1

mk

Hydrogen bomb is an example of.

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Nuclear fission

Nuclear fusion

Chain reaction

Chemical reaction

Two up quarks and one down quarks makes a

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Proton

Newton

Photon

Meson

Iodine -131 is used for the treatment by

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Bones

Eyes

thyroid glands

Lungs

Radioactivity happen due to the disintegration of

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Nucleus

Mass

Electrons

Protons

Half life of radon gas is

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3.8 minutes

3.8 days

3.8 months

3.8 years

The mass of beta particle is equal to mass of.

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Protons

Electrons

Neutrons

Boron

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

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80

79

82

83

Which pair belongs to hadrons.

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Protons and Neutrons

Neutrons and electrons

Photons and electrons

positrons and electrons

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