| 1 |
One joule of energy absorbed per kilogram of a body is |
- A. Roentgen
- B. Grey
- C. Rem
- D. Curie
|
| 2 |
Which one belongs to lepton's group |
- A. Electron
- B. <div>Muons</div>
- C. Neutrons
- D. All of these
|
| 3 |
If the following particle have the same energy, which particle has the shortest wave length. |
- A. alpha particle
- B. Neutron
- C. Beta particle
- D. Proton
|
| 4 |
Two down and one up quarks make |
- A. Proton
- B. Neutron
- C. <strike>photon</strike>
- D. Positron
|
| 5 |
The mass spectrum of naturally occurring neon shows the most abundant isotope has atomic mass. |
|
| 6 |
The quantity of U in the naturally occurring uranium is. |
- A. 0.2%
- B. 0.3%
- C. 0.7%
- D. 0.4%
|
| 7 |
The SI unit of decay constant is |
- A. m
- B. m<sup>-1</sup>
- C. S<sup>-1</sup>
- D. Nm<sup>-1</sup>
|
| 8 |
Which of the following basic force is able to provide an attraction between two neutrons: |
- A. Electrostatic and nuclear b
- B. Electrostatic and gravitational
- C. Gravitational and strong nuclear
- D. Only nuclear force
|
| 9 |
In Wilson cloud chamber, ß-particles leave |
- A. Thin and continuous tracks
- B. Thick and continuous tracks
- C. No tracks
- D. Thin and discontinuous tracks
|
| 10 |
Low level radiations effects |
- A. Less of hair
- B. Ulceration
- C. Drop of white blood cells
- D. All
|