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

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LAVANYA 31 - May - 2018 04 Min 45 Sec 110/120
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Ukasha Rana 29 - Apr - 2022 10 Min 50 Sec 100/120
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Gorak Danda 24 - Jun - 2024 08 Min 03 Sec 80/120
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haseeb 12 - Sep - 2021 07 Min 18 Sec 65/120
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Aleem Tahir 20 - Apr - 2021 10 Min 50 Sec 65/120
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Hamza Mukhtair 14 - Jul - 2022 06 Min 35 Sec 50/120
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ifrah Sheerazi 24 - Jun - 2021 10 Min 50 Sec 50/120
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umar 12 - Aug - 2021 10 Min 50 Sec 45/120
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Neha Khan 02 - Dec - 2021 10 Min 50 Sec 40/120
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Faisal Mehrban 22 - Jun - 2021 10 Min 50 Sec 40/120
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Sýèd Zàhàd 24 - Jun - 2022 10 Min 50 Sec 30/120
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Sami Saleem 23 - May - 2023 10 Min 50 Sec 25/120
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Faraz Ahmad 06 - May - 2021 10 Min 50 Sec 15/120
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Malik Farhan 23 - May - 2021 07 Min 32 Sec 10/120

ECAT Physics Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	The nucleus left after the emission of some radiation is called:	A. Parent nucleus B. Daughter necleus C. Mother necleus D. Any of these
2	When certain nucleus emits aβ-particles, is mass number:	A. Remain same B. Increases by one C. Decreases by one D. Decreases by four
3	The half life of radioactive substances depends upon	A. amount of substance B. energy of substance C. state of substance D. temperature of substance
4	Radium was discovered by:	A. Becquerel B. Marie curie C. Pierre curie D. Rutherford
5	The most abundant isotope of neon is	A. neon-20 B. neon-21 C. neon-22 D. neon-23
6	How many isotopes of helium are present?	A. 1 B. 2 C. 3 D. 4
7	Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called	A. deuteron B. deterium C. protium D. tritium
8	According to Rutherford atomic model, the positive charge in an atom	A. is concentrated at its centre B. is in the form of positive electron at same distance from its centre C. is spread uniformly through its volume D. none of these
9	The emission of radiations take place in elements, having charge number greater than	A. 109 B. 82 C. 69 D. 52
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

An alpha particle has a charge of

The unit of decay constant is

The half life of radioactive substances depends upon

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

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

The most abundant isotope of neon is

The diameter of an atom is of the order

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

Mass of neutron is

The nucleus/nuclei of hydrogen is/are:

Radioactivity was discovered by

If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be

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

The rate of decay of a radioactive substance

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

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

The number of protons inside a nucleus is called

The number of isotopes of hydrogen are

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

Curie is a unit of

Radioactivity was discovered by:

The energy is found from Einstein's mass energy relation is called

Radium was discovered by:

Neutrons are

Which are not the elementary particles?

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

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

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

The chemical behaviour of an atom is determined by

Neutron was suggested to be in the nucleus by:

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Top Scorers Of ECAT Pre General Science Physics Chapter 21 Nuclear Physics MCQ`s Test

ECAT Physics Chapter 21 Important MCQ's

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