ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

Try The MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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ECAT Physics Chapter 21 Nuclear Physics

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Question # 1

The unit of decay constant is

Question # 2

Which of the following material has longer half life

Question # 3

The total charge of any nucleus is given as

Question # 4

Radiation detector are used to

Question # 5

γ-rays behave like a particle because they explain the

Question # 6

How many isotopes of helium are present?

Question # 7

Marie curie and Pierre curie discovered:

Question # 8

Gamma rays consist of steam of

Question # 9

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

Question # 10

An alpha particle has a charge of

Question # 11

The figure 1.007276μ shows the mass of an:

Question # 12

The nucleus/nuclei of hydrogen is/are:

Question # 13

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

Question # 14

The range ofβ-particle in air is greater than that ofα-particle by

Question # 15

Radium was discovered by:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 During the nuclear changes, the law/s of conservation that hold/s are that of:
A. Charge
B. energy
C. Momentum
D. Mass
2 Gamma rays consist of steam of
A. electron
B. proton
C. photons
D. all of these
3 The chemical properties of all the isotopes of an elements are
A. same
B. different
C. slightly different
D. none of these
4 The range ofβ-particle in air is greater than that ofα-particle by
A. 1000 times
B. 100 times
C. 15 times
D. 10 times
5 Heavy water is made of one oxygen atom and two atoms of:
A. Protium
B. Deuterium
C. Tritium
D. Any of these
6 The missing mass which is converted to energy in the formation of nucleus, is called
A. packing fraction
B. mass defect
C. binding energy
D. none of these
7 For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
A. A - Z
B. A + Z
C. Z
D. A
8 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
9 For an atom having atomic number Z and atomic weight A, the charge on the nucleus is
A. A - Z
B. A + Z
C. Z
D. A
10 γ-rays behave like a particle because they explain the
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above

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