Question # 1

Hydrogen bomb is an example of.

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Nuclear fission

Nuclear fusion

Chain reaction

Chemical reaction

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

In nuclear radiation , track of alpha particle is.

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Thin

Discontinuous

Erratic

Continuous

Both Xenon and cesium have

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33 isotopes

34 Isotopes

36 Isotopes

35 Isotopes

Before and after nuclear reaction the number of protons and neutrons:

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Must be different

Must be decreased

Must be increased

Remains same

Cosmic rays consist of

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Protons

High energy photons

Positron

All of above

Nuclear fission chain reaction is controlled by using.

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Cadmium rods

Iron rods

Platinum rods

Steel rods

Binding energy per nucleus for uranium is above:

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6.7 Mev

7.7 Mev

6.9 MeV

7.9 MeV

Charge on an electron was determined by

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Ampere

Millikan

Maxwell

Bohr

The dead time of G.M tube is.

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10^-1 sec

10^-6sec

10^-4sec

10^-8sec

Number of Isotopes of Neon gas are

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2

3

4

1

The binding energy for_________ is maximum.

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Copper

Glass

Iron

Aluminum

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

Mass of meason is

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Greater then proton

Less than proton

Equal to proton

Equal to neutron

The charge of an alpha particle is equal to

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-e

+e

-2e

2e

Bottom quark carries charge :

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2/3 e

-2/3 e

+1/3 e

-1 /3 e

The mass of proton in amu is:

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1.07276

1.7276

1.007276

1.0007276

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