Question # 1

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 most useful tracer is.

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Strontium -90

Iodine -31

Cobalt -60

Carbon -14

Which one belongs to lepton's group

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Electron

Muons

Neutrons

All of these

The charge on Beta particle is

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+e

-e

-2e

None of these

One joule of energy absorbed per kilogram of a body is

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Roentgen

Grey

Rem

Curie

Which of the following are not hadrons.

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Muons

Mesons

Positrons

Neutrons

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

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19

20

21

22

The types of quacks are.

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2

3

4

6

Radioactivity happen due to the disintegration of

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Nucleus

Mass

Electrons

Protons

Two down and one up quarks make

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Proton

Neutron

~~photon~~

Positron

Binding energy for deuteron nucleus is given by

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2.8 MeV

2.23 MeV

2.28 MeV

2.25 MeV

Two up quarks and one down quarks makes a

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Proton

Newton

Photon

Meson

The half life of radioactive elements depends upon

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Temperature

Nature of element

Amount of the radioactive substance

Pressure

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

When a nucleus emits alpha particle its atomic mass decreases by

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1

2

3

4

The activity of radioactive sample

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Is constant

Increases with time

Decreases linearly with time

Decreases exponentially with time

Energy released by conversion of 1 amu is

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200 MeV

931 MeV

233 MeV

243 MeV

A pair of quark and anti quark makes a.

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Meason

harden

Lapton

Baryon

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Physics Fsc Part 2 Chapter 10 Online Test MCQs With Answers

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