Question # 1

Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called

Choose an answer

deuterium

protium

tritium

none of these

The total charge of any nucleus is given as

Choose an answer

Ze²

Z²e

Z/e

Ze

1 amu is equal to.

Choose an answer

1.66 x 10^-24kg

1.66 x 10^-19kg

1.66 x 10^-24kg

1.66 x 10^-27kg

During the nuclear changes, the law/s of conservation that hold/s are that of:

Choose an answer

Charge

energy

Momentum

Mass

All of these

Three quarks make:

Choose an answer

An electron

A meson

A baryon

A photon

None of these

If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be

Choose an answer

Equal to 1

Less than 1

Greater than 1

Infinity

After alpha decay the atomic number of the atom

Choose an answer

increase by four

decreases by two

increases by two

decrease by four

Phenomenon of radioactivity is due to disintegration of

Choose an answer

nucleus

neutron

proton

molecule

The number if neutrons in the nucleus of ₉₂U²³⁵are

Choose an answer

Infinite

92

235

143

The number of isotopes of hydrogen are

Choose an answer

2

1

3

4

Nucleon means:

Choose an answer

Only electrons

Only neutrons

Only protons

Both (A ) and (C)

Both (B) and (C)

Marie curie and Pierre curie discovered:

Choose an answer

Uranium

Polonium

Radium

Both (A) and (C)

Plutonium

Radium was discovered by:

Choose an answer

Becquerel

Marie curie

Pierre curie

Rutherford

Both (B) and (C)

The rate of decay of a radioactive substance

Choose an answer

decrease exponentially with time

decreases linearly with time

increases linearly with time

increases exponentially with time

Nucleus consists of

Choose an answer

proton and neutron

protons and electron

electron and neutron

protons only

The chemical properties of all the isotopes of an elements are

Choose an answer

same

different

slightly different

none of these

More Classes

Other Links

Physics ECAT Pre Engineering Chapter 21 Nuclear Physics Physics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer