Question # 1

Two up quarks and one down quarks makes a

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Proton

Newton

Photon

Meson

The number of Isotopes of cesium are.

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4

32

22

36

The binding energy per nucleon is maximum for

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Helium

Iron

Potassium

Radium

The charge on Beta particle is

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+e

-e

-2e

None of these

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

Energy needed to produce an electron hole in solid state detector is.

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1 to 2 eV

3 to 4 eV

6 to 7 eV

8 to 9 eV

Two down and one up quarks make

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Proton

Neutron

~~photon~~

Positron

Number of Isotopes of Neon gas are

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2

3

4

1

The mass spectrum of naturally occurring neon, showing

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1 isotope

2 isotope

3 isotope

4 isotope

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

Mass equivalent of 931 MeV energy is:

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6.02 x 10^-23 kg

1.766 x 10^-27kg

2.67 x 10^-29kg

6.02 x 10^-87kg

Radioactivity happen due to the disintegration of

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Nucleus

Mass

Electrons

Protons

The mass of beta particle is equal to mass of.

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Protons

Electrons

Neutrons

Boron

Which pair belongs to hadrons.

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Protons and Neutrons

Neutrons and electrons

Photons and electrons

positrons and electrons

Charge on an electron was determined by

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Ampere

Millikan

Maxwell

Bohr

The mass of proton in amu is:

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1.07276

1.7276

1.007276

1.0007276

For workers in nuclear facilities is, a weekly does of is normally considered safe

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1.0 msv

5.0 msv

2.0 msv

3.0 msv

The unit of radioactivity is:

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Bequerel

Henry

Pascal

Joule

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

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