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	Structure of the nucleus was explained by	A. J.J Thomson B. Bohr C. Millikan D. Rutherford
2	The range of particle depends upon the factor	A. charge, mass and energy of particle B. density of medium C. ionization potential of the atoms D. all the above
3	Which are not the elementary particles?	A. Photons B. Leptons C. Hadrons D. Quarks
4	Neutrons are	A. positive charge B. negatively charged C. massless D. neutral
5	Radium was discovered by:	A. Becquerel B. Marie curie C. Pierre curie D. Rutherford
6	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
7	Neutron was disvovered by:	A. Rutherford in 1920 B. Chadwick in 1922 C. Bohr in 1913 D. Compton in 1927
8	Marie curie and Pierre curie discovered:	A. Uranium B. Polonium C. Radium D. Both (A) and (C)
9	Referring to the above figure, we can say that of all the elements, the most stable element is	A. Phosphours B. Iron C. uranium D. Lithium
10	The chemical behaviour of an atom is determined by	A. binding energy B. atomic number C. mass number D. number of isotopes

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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

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

Phenomenon of radioactivity is due to disintegration of

The isotope/s of hydrogen is /are:

The chemical behaviour of an atom is determined by

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

β-particles are easily deflected by collisions than heavy

The half life of uranium-238 is

The half life of radioactive substances depends upon

A mass difference of 0.0012 u is equivalent to and energy of:

Radioactivity was discovered by

Marie curie and Pierre curie discovered:

When thorium nucleus emits aβ-particle, the daughter nucleus is called:

The nucleus/nuclei of hydrogen is/are:

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

The amount of energy equivalent to 1 a.m.u is

Charge on proton is

Nucleus of a hydrogen atom may contain:

Neutron was discovered by

The missing mass which is converted to energy in the formation of nucleus, is called

1 amu is equal to

The emission of radiations take place in elements, having charge number greater than

Which of the following material has smaller has life

In 1932 Chadwick discovered

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

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

The rate of decay of radioactive substance

When radioactive nucleus emits aβ-particle, the proton-neutron ratio

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

The penetration power ofβ-particle is

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

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ECAT Physics Chapter 21 Important MCQ's

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