Question # 1

After alpha decay the atomic number of the atom

Choose an answer

increase by four

decreases by two

increases by two

decrease by four

Electrons are

Choose an answer

positive charged

negatively charged

massless

neutral

The number if neutrons in the nucleus of ₉₂U²³⁵are

Choose an answer

Infinite

92

235

143

A mass spectrograph sort out

Choose an answer

molecules

atoms

elements

isotopes

The range ofβ-particle in air is greater than that ofα-particle by

Choose an answer

1000 times

100 times

15 times

10 times

Proton was discovered by Rutherford in

Choose an answer

1915

1906

1910

1920

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

Choose an answer

deuteron

deterium

protium

tritium

Radioactivity

Choose an answer

is exhibited more by semiconductors in general

in exhibited more by the element when they are coupled

with other radioactive elements by a covalent bond

is an atomic property of radioactive elements

Gamma rays consist of steam of

Choose an answer

electron

proton

photons

all of these

Structure of the nucleus was explained by

Choose an answer

J.J Thomson

Bohr

Millikan

Rutherford

The time required for a radioactive material to decrease in active by one half is called

Choose an answer

half time

half life

disintegration time

mean life

Which of the following material has longer half life

Choose an answer

radium

polonium

radium

uranium

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

Choose an answer

photon

position

antiproton

antineutrino

Rutherford performed an experiment on nuclear reactions in:

Choose an answer

1718 A.D

1818 A.D

1918 A.D

2001 A.D.

1701 A.D.

Charge on neutron is

Choose an answer

1.6 x 10^-19C

zero

-1.6 x 10^-19C

1.2 x 10^-19C

The chemical properties of an element depends upon the number of

Choose an answer

electron

position

photons

neutrons

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