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

In wilson cloud chamber, the air becomes saturated with:

Question # 2

Radiation detector are used to

Question # 3

The total charge of any nucleus is given as

Question # 4

The half life of uranium-238 is

Question # 5

In 1932 Chadwick discovered

Question # 6

Nucleon means:

Question # 7

When a charged particle passes through matter, it produces ionization, this effect is used in

Question # 8

1 amu is equal to.

Question # 9

The chemical properties of an element depends upon the number of

Question # 10

The missing mass which is converted to energy in the formation of nucleus, is called

Question # 11

1 amu is equal to

Question # 12

The nucleus/nuclei of hydrogen is/are:

Question # 13

The unit of decay constant is:

Question # 14

Nucleus of a hydrogen atom may contain:

Question # 15

Marie curie and Pierre curie discovered:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Which of the following material has smaller has life
A. uranium
B. polonium
C. radium
D. radian
2 Mass of proton is of order of
A. 10-31gm
B. 10-27kg
C. 10-24gm
D. 10+27kg
3 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
4 The emission of radiations take place in elements, having charge number greater than
A. 109
B. 82
C. 69
D. 52
5 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
6 Mass of neutron is
A. 1.67 x 10-31kg
B. 1.67 x 10-27kg
C. 9.1 x 10-31kg
D. 1.67 x 10-19kg
7 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
8 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
9 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
10 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000

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