Question # 1

The mass of beta particle is equal to mass of.

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Protons

Electrons

Neutrons

Boron

Both Xenon and cesium have

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33 isotopes

34 Isotopes

36 Isotopes

35 Isotopes

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

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Circulation of blood

Cancer

Heart Attack

Thyroid glands

The charge of an alpha particle is equal to

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-e

+e

-2e

2e

The unit of radioactivity is:

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Bequerel

Henry

Pascal

Joule

The background radiation to which we are exposed, on the average is.

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1 mSv per year

2 mSv per year

3 mSv per year

4 mSv per year

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 radioactive decay obeys the law

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The early Greeks believed that matter waves was

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Discrete

Continuous

Both continuous and discrete

All of above

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

The energy of photon for photoelectric effect is less than

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1 MeV

2 MeV

5 MeV

8 MeV

Energy released by conversion of 1 amu is

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200 MeV

931 MeV

233 MeV

243 MeV

Mass of meason is

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Greater then proton

Less than proton

Equal to proton

Equal to neutron

The place for soring the nuclear waste is

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Ocean

Damping in earth

Damping in desert

Bottom of old salt mines

Which particle has larger range in air.

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Alpha rays

Gama rays

Beta rays

Neutron

Bottom quark carries charge :

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2/3 e

-2/3 e

+1/3 e

-1 /3 e

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

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Physics FSC Part 2 Chapter 21 Online MCQ's Test MCQs With Answers

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