Question # 1

Which of the following material has longer half life

Choose an answer

radium

polonium

radium

uranium

The total charge of any nucleus is given as

Choose an answer

Ze²

Z²e

Z/e

Ze

A pair of quark and antiquark makes a:

Choose an answer

Meson

Baryon

Proton

Neutron

None of these

Radium was discovered by:

Choose an answer

Becquerel

Marie curie

Pierre curie

Rutherford

Both (B) and (C)

The diameter of an atom is of the order

Choose an answer

10^-125m

10^-11m

10^-10m

10^-9m

Neutron was disvovered by:

Choose an answer

Rutherford in 1920

Chadwick in 1922

Bohr in 1913

Compton in 1927

None of these

Rate of decay is actually described by.

Choose an answer

Half line

Decay constant

Mean life

Total life

None of these

When certain nucleus emits aβ-particles, is mass number:

Choose an answer

Remain same

Increases by one

Decreases by one

Decreases by four

None of these

1 amu is equal to

Choose an answer

1.66 x 10^-24kg

1.66 x 10^-19kg

1.66 x 10^-34kg

1.66 x 10^-27kg

Mass of proton is of order of

Choose an answer

10^-31gm

10^-27kg

10^-24gm

10⁺²⁷kg

Mass of proton is

Choose an answer

1.67 x 10^-27kg

1.67 x 10^-31kg

1.66 x 10^-34kg

1.67 x 10^-17kg

Neutron was discovered in

Choose an answer

1915

1920

1925

1932

Nucleus consists of

Choose an answer

proton and neutron

protons and electron

electron and neutron

protons only

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

Choose an answer

fission reaction

reactor

radiation detector

fusion reaction

The reciprocal of decay constant λ of a radioactive material is:

Choose an answer

Frequency

Half life

Year

Mean life

None of these

The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called

Choose an answer

nuclear fission

nuclear fusion

man defect

radioactivity

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