| 1 |
What is difference is isotopes |
- A. Number of protons
- B. Number of neutrons
- C. Number of electrons
- D. Charge number
|
| 2 |
For workers in nuclear facilities is, a weekly does of is normally considered safe |
- A. 1.0 msv
- B. 5.0 msv
- C. 2.0 msv
- D. 3.0 msv
|
| 3 |
Nuclear fission chain reaction is controlled by using. |
- A. Cadmium rods
- B. Iron rods
- C. Platinum rods
- D. Steel rods
|
| 4 |
The number of protons in any atom are always equal to the number of |
- A. Neutrons
- B. Electrons
- C. Positrons
- D. Mesoris
|
| 5 |
Marie Curie and Pierre Curie discovered. |
- A. Uranium
- B. Uranium and Radium
- C. Polonium and radium
- D. Radium
|
| 6 |
Which particle has larger range in air. |
- A. Alpha rays
- B. Gama rays
- C. Beta rays
- D. Neutron
|
| 7 |
Two down and one up quarks make |
- A. Proton
- B. Neutron
- C. <strike>photon</strike>
- D. Positron
|
| 8 |
Those elements whose charge number z is greater then __________ are unstable: |
- A. 80
- B. 79
- C. 82
- D. 83
|
| 9 |
Rutherford performed on experiment on a nuclear reaction in: |
- A. 1921
- B. 1981
- C. 1927
- D. 1932
|
| 10 |
The mass of protons is: |
- A. 1.675 x 10<sup>-27</sup> kg
- B. 1.693 x 10<sup>-27</sup> kg
- C. 1.673 x 10<sup>-31</sup> kg
- D. 1.673 x 10<sup>-27</sup> kg
|