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	Three quarks make:	A. An electron B. A meson C. A baryon D. A photon
2	Referring to the above figure, we can say that of all the elements, the most stable element is	A. Phosphours B. Iron C. uranium D. Lithium
3	Charge on neutron is	A. 1.6 x 10^-19C B. zero C. -1.6 x 10^-19C D. 1.2 x 10^-19C
4	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
5	When a charged particle passes through matter, it produces ionization, this effect is used in	A. fission reaction B. reactor C. radiation detector D. fusion reaction
6	In radioactive decay, the new element which is formed due to the disintegration of original element is called	A. element B. daughter element C. parent element D. none of these
7	The unit of decay constant is	A. sex B. sec² C. sec^-1 D. sec^-2
8	Radioactivity	A. is exhibited more by semiconductors in general B. in exhibited more by the element when they are coupled C. with other radioactive elements by a covalent bond D. is an atomic property of radioactive elements
9	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
10	The isotope/s of hydrogen is /are:	A. Protium B. Deuterium C. Tritium D. Both (A) and (B)

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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

In radioactive decay, the new element which is formed due to the disintegration of original element is called

Pair production take place when energy ofγ-rays photon is

The total charge of any nucleus is given as

Radioactivity was discovered by:

The time required for a radioactive material to decrease in active by one half is called

The diameter of an atom is of the order

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

For Protium, the mass defect is:

Radioactivity was discovered by

Radiation detector are used to

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

Which are not the elementary particles?

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

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

Which of the following material has longer half life

The chemical properties of an element depends upon the number of

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

An alpha particle has a charge of

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

Binding energy per nucleus is

Alfa particles are

Charge on neutron is

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

The range of particle depends upon the factor

Neon gas have three isotopes whose atomic numbers are

The figure 1.007276μ shows the mass of an:

The nucleus/nuclei of hydrogen is/are:

Which of these is not a radiation detector

A mass spectrograph sort out

Nucleus consists of

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ECAT Physics Chapter 21 Important MCQ's

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