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

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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	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
2	Three quarks make:	A. An electron B. A meson C. A baryon D. A photon
3	Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:	A. 50 B. 100 C. 150 D. 200
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	Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called	A. deuterium B. protium C. tritium D. none of these
6	The most abundant isotope of neon is	A. neon-20 B. neon-21 C. neon-22 D. neon-23
7	The energy acquired by a mass of 1g moving with the speed of light is	A. 3 x 10⁸J B. 9 x 10¹³J C. 3 x 10¹³J D. 9 x 10¹⁶J
8	A mass difference of 0.0012 u is equivalent to and energy of:	A. 0.5 Me V B. 1.13 MeV C. 5.13 MeV D. 1.13 keV
9	Binding energy per nucleus is	A. greater for heavy nucleus B. least for heavy nucleus C. greatest for light nuclei D. decreases for medium weight niclei
10	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

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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 particles are

For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is

How many isotopes of helium are present?

Nucleus consists of

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

The half lie of radium-226 is

The penetration power ofβ-particle is

The rate of decay of radioactive substance

Which of the following material has smaller has life

Radioactivity is

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

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

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

The range of particle depends upon the factor

The rate of decay of a radioactive substance

Charge on neutron is

Rate of decay is actually described by.

Three quarks make:

Charge on proton is

Radiation detector are used to

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

For an atom having atomic number Z and atomic weight A, the number of electron in an atoms

Beta particles are

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

Neutron was suggested to be in the nucleus by:

Radioactivity was discovered by:

The chemical properties of all the isotopes of an elements are

The distance travelled byα-particle in a medium before coming to rest, is called

The total charge of any nucleus is given as

Which of the following material has longer half life

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ECAT Physics Chapter 21 Important MCQ's

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