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

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

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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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Ch Iftihar 25 - Jan - 2022 07 Min 34 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

Sr.#	Question	Answer
1	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
2	Radioactivity was discovered by:	A. Becquerel B. Marie curie C. Pierre curie D. All of them
3	A pair of quark and antiquark makes a:	A. Meson B. Baryon C. Proton D. Neutron
4	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	A. nuclear fission B. nuclear fusion C. man defect D. radioactivity
5	In his experiment on nuclear reactions, Rutherford bombardedα particles on:	A. Nitrogen B. Hydrogen C. Lead D. Oxygen
6	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
7	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
8	The chemical behaviour of an atom is determined by	A. binding energy B. atomic number C. mass number D. number of isotopes
9	In wilson cloud chamber, the air becomes saturated with:	A. Alcohol vapours B. Water C. Helium gas D. Nitrogen gas
10	For Protium, the mass defect is:	A. Infinite B. Zero C. Very large D. A few grams

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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

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

Nuclei that have the same charge number but different mass number are called

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

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

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

Neutron was discovered by

The number of isotopes of hydrogen are

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

The range of particle depends upon the factor

A pair of quark and antiquark makes a:

The nuclei of an element having the same charge number but different mass numbers are called:

The number of protons inside a nucleus is called

Radioactivity was discovered by

The half lie of radium-226 is

The half life of radioactive substances depends upon

Alfa particles are

The unit of decay constant is

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

Radiation detector are used to

Neutron was suggested to be in the nucleus by:

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

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

Neutrons are

The unit of decay constant is:

Referring to the above figure, we can say that of all the elements, the most stable element is

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

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

The figure 1.007276μ shows the mass of an:

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

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

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

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