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

00:00
Question # 1

How much time, theα-particle more massive than an electron

Question # 2

The energy is found from Einstein's mass energy relation is called

Question # 3

Nucleon means:

Question # 4

The half life of radioactive substances depends upon

Question # 5

The chemical behaviour of an atom is determined by

Question # 6

Three quarks make:

Question # 7

A curie represents a very strong source of

Question # 8

γ-rays behave like a particle because they explain the

Question # 9

The total charge of any nucleus is given as

Question # 10

The diameter of an atom is of the order

Question # 11

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

Question # 12

Phenomenon of radioactivity is due to disintegration of

Question # 13

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

Question # 14

Which of these is not a radiation detector

Question # 15

Charge on neutron is

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Radium was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. Rutherford
2 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
3 The chemical behaviour of an atom is determined by
A. binding energy
B. atomic number
C. mass number
D. number of isotopes
4 The half life of uranium-238 is
A. 6.2 x 109years
B. 4.5 x 109days
C. 4.5 x 109years
D. 1.3 x 106years
5 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
6 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
7 The nucleus/nuclei of hydrogen is/are:
A. Proton
B. Deuteron
C. Triton
D. All of these
8 The reciprocal of decay constant λ of a radioactive material is:
A. Frequency
B. Half life
C. Year
D. Mean life
9 The emission of radiations take place in elements, having charge number greater than
A. 109
B. 82
C. 69
D. 52
10 Neutron was suggested to be in the nucleus by:
A. Rutherford in 1920
B. Bohar in 1913
C. Dirac in 1928
D. Anderson in 1932

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