Question # 1

Nucleon means:

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Only electrons

Only neutrons

Only protons

Both (A ) and (C)

Both (B) and (C)

When a charged particle passes through matter, it produces ionization, this effect is used in

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fission reaction

reactor

radiation detector

fusion reaction

Radiation detector are used to

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measure intensity of radiation

measure energy of radiation

difference between different types of radiation

all the above

1 amu is equal to.

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1.66 x 10^-24kg

1.66 x 10^-19kg

1.66 x 10^-24kg

1.66 x 10^-27kg

Alfa particles are

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hydrogen nuclei

helium nuclei

electrons

photons

β-particles are easily deflected by collisions than heavy

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α-particles

β-particles

γ-particles

none of these

Curie is a unit of

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reluctance

resistivity

binding energy

radioactivity

Charge on proton is

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1.59 x 10^-9C

1.59 x 10^-7C

-1.59 x 10^-19C

1.59 x 10^-19C

A particle having the mass of electron and charge of a proton is called a

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photon

position

antiproton

antineutrino

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

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polonium uranium

uranium and radium

polonium and radium

none of these

Neutron was discovered by

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Curie

Roentgen

Chadwick

Rutherford

A curie represents a very strong source of

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α-particle

β-particle

γ-particle

none of these

The most abundant isotope of neon is

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neon-20

neon-21

neon-22

neon-23

Marie curie and Pierre curie discovered:

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Uranium

Polonium

Radium

Both (A) and (C)

Plutonium

The figure 1.007276μ shows the mass of an:

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Atom

Positron

Electron

Neutron

Proton

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ECAT Physics Chapter 21 Nuclear Physics Online Test MCQs With Answers

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