ECAT Pre General Science Chapter 21 online mcq test with answers for Physics chapter 21 (Nuclear Physics)

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ECAT Physics Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	The total charge of any nucleus is given as	A. Ze² B. Z²e C. Z/e D. Ze
2	In radioactive decay, the new element which is formed due to the disintegration of original element is called	A. element B. daughter element C. parent element D. none of these
3	The chemical properties of an element depends upon the number of	A. electron B. position C. photons D. neutrons
4	The penetration power ofβ-particle is	A. zero B. less thanα-particle C. equal toα-particle D. greater thanα-particle
5	Structure of the nucleus was explained by	A. J.J Thomson B. Bohr C. Millikan D. Rutherford
6	U-238 present in the natural uranium is about:	A. 59% B. 0.007% C. 99% D. 39%
7	The energy is found from Einstein's mass energy relation is called	A. binding energy of electron B. binding energy of proton C. binding energy of neutron D. binding energy of nucleus
8	When a nucleus emits an alpha particle, it atomic mass decreased by	A. 2 B. 1 C. 4 D. 3
9	Mass of proton is	A. 1.67 x 10^-27kg B. 1.67 x 10^-31kg C. 1.66 x 10^-34kg D. 1.67 x 10^-17kg
10	Nuclei that have the same charge number but different mass number are called	A. isotones B. isomers C. isotopes D. isobars

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ECAT Pre General Science Physics Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 21 Nuclear Physics

ECAT Pre General Science Physics Chapter 21 Nuclear Physics

For an atom having atomic number Z and atomic weight A, the number of electron in an atoms

The half life of radioactive substances depends upon

The chemical properties of all the isotopes of an elements are

Mass of neutron is

Neutrons are

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

Examples of moderators used in a fission reactor is/are:

In radioactive decay, the new element which is formed due to the disintegration of original element is called

Which of the following material has longer half life

For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is

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

The rate of decay of radioactive substance

Rutherford performed an experiment on nuclear reactions in:

The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains

The isotope/s of hydrogen is /are:

The range of particle depends upon the factor

The diameter of an atom is of the order

The nucleus left after the emission of some radiation is called:

The penetration power ofβ-particle is

A mass spectrograph sort out

In radio-active decay, the original element which disintegrate to another element is called

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

Three quarks make:

When a nucleus emits an alpha particles, its charge number decreases by

The most abundant isotope of neon is

The rate of decay of a radioactive substance

Nucleus consists of

The half life of uranium-238 is

Neutron was suggested to be in the nucleus by:

The number of all the protons and neutrons in a nucleus is known as

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ECAT Physics Chapter 21 Important MCQ's

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