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	Radiation detector are used to	A. measure intensity of radiation B. measure energy of radiation C. difference between different types of radiation D. all the above
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	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
4	Nucleon means:	A. Only electrons B. Only neutrons C. Only protons D. Both (A ) and (C)
5	U-238 present in the natural uranium is about:	A. 59% B. 0.007% C. 99% D. 39%
6	Which of the following material has smaller has life	A. uranium B. polonium C. radium D. radian
7	Proton was discovered by Rutherford in	A. 1915 B. 1906 C. 1910 D. 1920
8	The figure 1.007276μ shows the mass of an:	A. Atom B. Positron C. Electron D. Neutron
9	A pair of quark and antiquark makes a:	A. Meson B. Baryon C. Proton D. Neutron
10	Which are not the elementary particles?	A. Photons B. Leptons C. Hadrons D. Quarks

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

Neutron was discovered in

The most abundant isotope of neon is

1 amu is equal to.

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

Neutron was suggested to be in the nucleus by:

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

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

The unit of decay constant is

Heavy water is made of one oxygen atom and two atoms of:

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

Charge on neutron is

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

Nucleus consists of

Mass of proton is

Mass of proton is of order of

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

1 amu is equal to

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

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

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

γ-rays behave like a particle because they explain the

There is present in paraffin a large amount of:

Which of the following material has smaller has life

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

The number of protons inside a nucleus is called

Nucleus of a hydrogen atom may contain:

Alfa , beta and gamma rays are emitted from a radio-active substance

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

Binding energy per nucleus is

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ECAT Physics Chapter 21 Important MCQ's

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