Question # 1

Binding energy for deuteron nucleus is given by

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2.8 MeV

2.23 MeV

2.28 MeV

2.25 MeV

amu =

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1.06 x 10^-27 kg

1.6606 x 10^-27 kg

1.520 x 10^-21 kg

1.6606 x 10^-31 kg

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

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19

20

21

22

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

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Baryons

Leptons

Mesons

Quarks

The number of protons in any atom are always equal to the number of

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Neutrons

Electrons

Positrons

Mesoris

Which particle has larger range in air.

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Alpha rays

Gama rays

Beta rays

Neutron

How many times, the alpha particle is more massive than electrons.

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6332

7332

8332

9332

The energy of photon for photoelectric effect is less than

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1 MeV

2 MeV

5 MeV

8 MeV

Mass of meason is

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Greater then proton

Less than proton

Equal to proton

Equal to neutron

Low level radiations effects

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Less of hair

Ulceration

Drop of white blood cells

All

GM counter uses

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Alcohol only

Bromine

argon

Neon and bromine

The mass spectrum of naturally occurring neon, showing

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1 isotope

2 isotope

3 isotope

4 isotope

The building blocks of protons and neutrons are called.

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Ions

Electrons

Positrons

quarks

A radio active substance has a half life of four months. 3 -fourth of the substance will decay in:

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6 months

8 months

12 months

16 months

The mass of proton in amu is:

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1.07276

1.7276

1.007276

1.0007276

There is no charge in A and Z of any radioactive element by the emission of.

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Alpha particle

Beta particle

Gama particle

X- rays

Gamma radiations are emitted due to:

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De-excitation of atom

De-excitation of nucleus

Excitation of atom

Excitation of nucleus

The binding energy for_________ is maximum.

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Copper

Glass

Iron

Aluminum

The first atomic reactor was introduced by

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Currie

Enrico Fermi

Newton

Bohr

Unit of decay constantλ is:

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ms

m^-1

m

S^-1

The SI unit of decay constant is

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m

m^-1

S^-1

Nm^-1

Electrons are

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Hadrons

Laptons

Quarks

Baryons

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Physics Fsc Part 2 Chapter 10 Online Test MCQs With Answers

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