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	Maric Curie and Pieree Curie discovered two new radioactive elements, which are called	A. polonium uranium B. uranium and radium C. polonium and radium D. none of these
2	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
3	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
4	1 amu is equal to	A. 1.66 x 10^-24kg B. 1.66 x 10^-19kg C. 1.66 x 10^-34kg D. 1.66 x 10^-27kg
5	Radioactivity was discovered by	A. Rutherford B. Henri Becqureal C. Maxwell D. James Chadwick
6	Neutron was discovered in	A. 1915 B. 1920 C. 1925 D. 1932
7	Nucleus consists of	A. proton and neutron B. protons and electron C. electron and neutron D. protons only
8	Proton was discovered by Rutherford in	A. 1915 B. 1906 C. 1910 D. 1920
9	The most abundant isotope of neon is	A. neon-20 B. neon-21 C. neon-22 D. neon-23
10	The chemical behaviour of an atom is determined by	A. binding energy B. atomic number C. mass number D. number of isotopes

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

Nucleus of a hydrogen atom may contain:

The energy acquired by a mass of 1g moving with the speed of light is

Curie is a unit of

Neutron was suggested to be in the nucleus by:

Different radioactive material have

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

Binding energy per nucleus is

Marie curie and Pierre curie discovered:

Which are not the elementary particles?

The half lie of radium-226 is

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

Neutron was disvovered by:

Neon gas have three isotopes whose atomic numbers are

U-238 present in the natural uranium is about:

The chemical properties of all the isotopes of an elements are

The diameter of an atom is of the order

Nucleus consists of

Fraction of the decaying atoms per unit time is called

The half life of uranium-238 is

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

The total charge of any nucleus is given as

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

Charge on proton is

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

The chemical behaviour of an atom is determined by

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

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

The figure 1.007276μ shows the mass of an:

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

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ECAT Physics Chapter 21 Important MCQ's

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