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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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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 21 Nuclear Physics
00:00
Question # 1
The time required for a radioactive material to decrease in active by one half is called
Question # 2
In wilson cloud chamber, the air becomes saturated with:
Question # 3
The chemical properties of all the isotopes of an elements are
Question # 4
There is present in paraffin a large amount of:
Question # 5
1 amu is equal to
Question # 6
Which of the following material has smaller has life
Question # 7
β-particles are easily deflected by collisions than heavy
Question # 8
Radiation detector are used to
Question # 9
The half life of uranium-238 is
Question # 10
Three quarks make:
Question # 11
γ-rays behave like a particle because they explain the
Question # 12
An alpha particle has a charge of
Question # 13
Mass of proton is
Question # 14
During the nuclear changes, the law/s of conservation that hold/s are that of:
Question # 15
For Protium, the mass defect is:
Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQs Online With Answers
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M Muhammad Haseeb 25 - Nov - 2024 02 Min 17 Sec 40/60
ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | How many isotopes of helium are present? |
A. 1
B. 2
C. 3
D. 4
|
| 2 | 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
|
| 3 | Maric Curie and Pieree Curie discovered two new radioactive elements, which are called |
A. polonium uranium
B. uranium and radium
C. polonium and radium
D. none of these
|
| 4 | The chemical properties of all the isotopes of an elements are |
A. same
B. different
C. slightly different
D. none of these
|
| 5 | Radioactivity was discovered by: |
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
|
| 6 | 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
|
| 7 | The nucleus/nuclei of hydrogen is/are: |
A. Proton
B. Deuteron
C. Triton
D. All of these
|
| 8 | When thorium nucleus emits aβ-particle, the daughter nucleus is called: |
A. Protactinium
B. Actinium
C. Uranium
D. Radium
|
| 9 | Mass of proton is |
A. 1.67 x 10-27kg
B. 1.67 x 10-31kg
C. 1.66 x 10-34kg
D. 1.67 x 10-17kg
|
| 10 | 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
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs