ECAT Pre Engineering Physics Chapter 21 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

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

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Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

00:00
Question # 1

Radium was discovered by:

Question # 2

A particle having the mass of electron and charge of a proton is called a

Question # 3

A curie represents a very strong source of

Question # 4

Which of the following material has longer half life

Question # 5

Neutron was disvovered by:

Question # 6

The chemical behaviour of an atom is determined by

Question # 7

The range of particle depends upon the factor

Question # 8

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

Question # 9

1 amu is equal to

Question # 10

Structure of the nucleus was explained by

Question # 11

Marie curie and Pierre curie discovered:

Question # 12

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

Question # 13

Neutron was discovered in

Question # 14

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

Question # 15

For Protium, the mass defect is:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Charge on proton is
A. 1.59 x 10-9C
B. 1.59 x 10-7C
C. -1.59 x 10-19 C
D. 1.59 x 10-19C
2 Gamma rays consist of steam of
A. electron
B. proton
C. photons
D. all of these
3 Radium was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. Rutherford
4 After alpha decay the atomic number of the atom
A. increase by four
B. decreases by two
C. increases by two
D. decrease by four
5 The chemical properties of an element depends upon the number of
A. electron
B. position
C. photons
D. neutrons
6 For Protium, the mass defect is:
A. Infinite
B. Zero
C. Very large
D. A few grams
7 U-238 present in the natural uranium is about:
A. 59%
B. 0.007%
C. 99%
D. 39%
8 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
9 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
10 The half lie of radium-226 is
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years

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