Question # 1

GM counter uses

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Alcohol only

Bromine

argon

Neon and bromine

1 gray is equal to.

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1 JKg-1

1KgJ-1

1JKg

1 JKg-2

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

The charge on Beta particle is

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+e

-e

-2e

None of these

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

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Circulation of blood

Cancer

Heart Attack

Thyroid glands

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

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Baryons

Leptons

Mesons

Quarks

The force which is responsible for the breaking up of the radioactive element is.

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Weak nuclear force

Strong nuclear force

Electromagnetic force

Gravitational force

Number of Isotopes of Neon gas are

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2

3

4

1

Which one belongs to lepton's group

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Electron

Muons

Neutrons

All of these

Binding energy per nucleon is maximum for

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Platinum

Iron

Uranium

Lead

The types of quacks are.

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2

3

4

6

The mass spectrum of naturally occurring neon shows the most abundant isotope has atomic mass.

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19

20

21

22

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

Which particle has larger range in air.

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Alpha rays

Gama rays

Beta rays

Neutron

Hydrogen bomb is an example of.

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Nuclear fission

Nuclear fusion

Chain reaction

Chemical reaction

The quantity of U in the naturally occurring uranium is.

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0.2%

0.3%

0.7%

0.4%

Marie Curie and Pierre Curie discovered.

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Uranium

Uranium and Radium

Polonium and radium

Radium

Gamma radiations are emitted due to:

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De-excitation of atom

De-excitation of nucleus

Excitation of atom

Excitation of nucleus

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

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