| 1 |
A pair of quark and anti quark makes a. |
- A. Meason
- B. harden
- C. Lapton
- D. Baryon
|
| 2 |
Curie is unit of. |
- A. Conductivity
- B. Binding energy
- C. <div>Radioactivity</div>
- D. Resistivity
|
| 3 |
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
|
| 4 |
The most abundant isotope of neon is: |
- A. Neon 21
- B. Neon 20
- C. Neon 22
- D. None of above
|
| 5 |
Unit of decay constant<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">λ is:</span> |
- A. ms
- B. m<sup>-1</sup>
- C. m
- D. S<sup>-1</sup>
|
| 6 |
When nitrogen is bombarded by alpha particles nitrogen nucleus changes into |
- A. Oxygen
- B. Carbon
- C. Barium
- D. Helium
|
| 7 |
Two up quarks and one down quarks makes a |
- A. Proton
- B. Newton
- C. Photon
- D. Meson
|
| 8 |
In nuclear radiation , track of alpha particle is. |
- A. Thin
- B. Discontinuous
- C. Erratic
- D. Continuous
|
| 9 |
The quantity of U in the naturally occurring uranium is. |
- A. 0.2%
- B. 0.3%
- C. 0.7%
- D. 0.4%
|
| 10 |
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
|