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	If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be	A. Equal to 1 B. Less than 1 C. Greater than 1 D. Infinity
2	Nucleus of a hydrogen atom may contain:	A. One neutron only B. Two protons and one neutron C. Two protons and two neutrons D. Aany of above
3	For Protium, the mass defect is:	A. Infinite B. Zero C. Very large D. A few grams
4	The nucleus left after the emission of some radiation is called:	A. Parent nucleus B. Daughter necleus C. Mother necleus D. Any of these
5	When radioactive nucleus emits aβ-particle, the proton-neutron ratio	A. decrease B. increase C. same D. none of these
6	Heavy water is made of one oxygen atom and two atoms of:	A. Protium B. Deuterium C. Tritium D. Any of these
7	When a nucleus emits an alpha particles, its charge number decreases by	A. 3 B. 2 C. 6 D. 5
8	Which of the following material has smaller has life	A. uranium B. polonium C. radium D. radian
9	Gamma rays consist of steam of	A. electron B. proton C. photons D. all of these
10	γ-rays are	A. electrostatic waves B. electromagnetic waves C. heavy particles D. longitudinal waves

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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

Alfa , beta and gamma rays are emitted from a radio-active substance

Phenomenon of radioactivity is due to disintegration of

Radioactivity was discovered by:

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

The nucleus/nuclei of hydrogen is/are:

A pair of quark and antiquark makes a:

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

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

Rutherford performed an experiment on nuclear reactions in:

How many isotopes of helium are present?

Which of the following material has longer half life

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

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

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

When a nucleus emits an alpha particle, it atomic mass decreased by

Binding energy per nucleus is

Neutron was disvovered by:

When certain nucleus emits anα particle, its mass number:

The figure 1.007276μ shows the mass of an:

The chemical properties of an element depends upon the number of

Nucleus of a hydrogen atom may contain:

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

Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:

For an atom having atomic number Z and atomic weight A, the charge on the nucleus is

The chemical properties of all the isotopes of an elements are

Marie curie and Pierre curie discovered:

γ-rays behave like a particle because they explain the

The penetration power ofβ-particle is

Nucleon means:

The range of particle depends upon the factor

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ECAT Physics Chapter 21 Important MCQ's

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