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

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

Question # 2

1 amu is equal to

Question # 3

An alpha particle has a charge of

Question # 4

Nucleon means:

Question # 5

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

Question # 6

The chemical properties of all the isotopes of an elements are

Question # 7

Structure of the nucleus was explained by

Question # 8

The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains

Question # 9

Radioactivity

Question # 10

Rutherford performed an experiment on nuclear reactions in:

Question # 11

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

Question # 12

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

Question # 13

The rate of decay of radioactive substance

Question # 14

The half lie of radium-226 is

Question # 15

A mass spectrograph sort out

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Proton was discovered by Rutherford in
A. 1915
B. 1906
C. 1910
D. 1920
2 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
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 The most abundant isotope of neon is
A. neon-20
B. neon-21
C. neon-22
D. neon-23
5 There is present in paraffin a large amount of:
A. Nitrogen
B. Hydrogen
C. Carbon
D. Baryllium
6 Alfa , beta and gamma rays are emitted from a radio-active substance
A. spontaneously
B. when it is heated
C. when it is exposed to light
D. When it interacts with the other particle
7 Marie curie and Pierre curie discovered:
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)
8 Nucleus consists of
A. proton and neutron
B. protons and electron
C. electron and neutron
D. protons only
9 For Protium, the mass defect is:
A. Infinite
B. Zero
C. Very large
D. A few grams
10 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4

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