Question # 1

In nuclear radiation , track of alpha particle is.

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Thin

Discontinuous

Erratic

Continuous

How many neutrons are there in the nuclide Zn⁶⁶?

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22

30

36

66

The mass spectrum of naturally occurring neon, showing

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1 isotope

2 isotope

3 isotope

4 isotope

X -rays are similar in nature to.

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Gama rays

Beta rays

Alpha rays

Cathode rays

Energy released by conversion of 1 amu is

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200 MeV

931 MeV

233 MeV

243 MeV

The building blocks of protons and neutrons are called.

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Ions

Electrons

Positrons

quarks

Two up quarks and one down quarks makes a

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Proton

Newton

Photon

Meson

Materials can be identified by measuring their

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Mass

Half life

Both a and b

None of a,b,c

When a nucleus emits an alpha particle, its atomic mass decreases by

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1

2

3

4

GM counter uses

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Alcohol only

Bromine

argon

Neon and bromine

I amu =

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9.31 MeV

931 MeV

9.031 MeV

None of above

One joule of energy absorbed per kilogram of a body is

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Roentgen

Grey

Rem

Curie

The unit of radioactivity is:

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Bequerel

Henry

Pascal

Joule

In Wilson cloud chamber, ß-particles leave

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Thin and continuous tracks

Thick and continuous tracks

No tracks

Thin and discontinuous tracks

Bottom quark carries charge :

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2/3 e

-2/3 e

+1/3 e

-1 /3 e

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

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Baryons

Leptons

Mesons

Quarks

The mass of beta particle is equal to the mass

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Proton

Neutron

Electron

Photon

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

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Neutrons

Electrons

Positrons

Mesoris

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Physics Fsc Part 2 Chapter 10 Online Test MCQs With Answers

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