| 1 |
Energy needed to produce an electron hole in solid state detector is. |
- A. 1 to 2 eV
- B. 3 to 4 eV
- C. 6 to 7 eV
- D. 8 to 9 eV
|
| 2 |
James chadwick discovered: |
- A. Proton
- B. Positron
- C. Neutron
- D. Electron
|
| 3 |
The early Greeks believed that matter waves was |
- A. Discrete
- B. Continuous
- C. Both continuous and discrete
- D. All of above
|
| 4 |
Subatomic particles are divided into groups. |
- A. Photon
- B. Laptons
- C. Hadrons
- D. All of these
|
| 5 |
When a nucleus emits an alpha particle, its atomic mass decreases by |
|
| 6 |
In Wilson cloud chamber, if tracks are thick, straight and continuous, then particle is |
- A. a-particles
- B. ß-particles
- C. Y-rays
- D. All
|
| 7 |
Which particle has larger range in air. |
- A. Alpha rays
- B. Gama rays
- C. Beta rays
- D. Neutron
|
| 8 |
The mass of proton in amu is: |
- A. 1.07276
- B. 1.7276
- C. 1.007276
- D. 1.0007276
|
| 9 |
The particles equal in mass but greater than proton are. |
- A. Mesons
- B. Baryons
- C. Leptons
- D. Hadrons
|
| 10 |
The mass spectrum of naturally occurring neon shows the most abundant isotope has atomic mass. |
|