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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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 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
2	The penetration power ofβ-particle is	A. zero B. less thanα-particle C. equal toα-particle D. greater thanα-particle
3	Alfa particles are	A. hydrogen nuclei B. helium nuclei C. electrons D. photons
4	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
5	The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains	A. 3 more neutrons B. 3 more electrons C. 3 more protons D. 3 more ions
6	The half life of uranium-238 is	A. 6.2 x 10⁹years B. 4.5 x 10⁹days C. 4.5 x 10⁹years D. 1.3 x 10⁶years
7	The chemical behaviour of an atom is determined by	A. binding energy B. atomic number C. mass number D. number of isotopes
8	How much time, theα-particle more massive than an electron	A. 600 B. 7000 C. 5000 D. 15000
9	Marie curie and Pierre curie discovered:	A. Uranium B. Polonium C. Radium D. Both (A) and (C)
10	Neon gas have three isotopes whose atomic numbers are	A. 20, 24 , 23 B. 20, 21 , 22 C. 20, 19 , 21 D. none of these

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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 number of isotopes of hydrogen are

According to Rutherford atomic model, the positive charge in an atom

Neutrons are

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

If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by

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

Three quarks make:

Mass of proton is

Radioactivity was discovered by:

How much time, theα-particle more massive than an electron

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

Gamma rays consist of steam of

γ-rays are

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

The number if neutrons in the nucleus of 92U235are

Radiation detector are used to

Binding energy per nucleus is

1 amu is equal to.

A pair of quark and antiquark makes a:

Mass of neutron is

Neutron was discovered in

Neutron was suggested to be in the nucleus by:

The total charge of any nucleus is given as

The isotope/s of hydrogen is /are:

1 amu is equal to

Nucleus consists of

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

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

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

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ECAT Physics Chapter 21 Important MCQ's

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The number if neutrons in the nucleus of ₉₂U²³⁵are