Entry Test MCQ :: Nuclear Physics
|
|
|
|
|
|
| 41. |
Sterilization of surgical instruments medical supplies and bandages can be done by exposing them to a beam of |
| A. |
?-rays |
B. |
?-rays |
| C. |
?-rays |
D. |
b and c have equal antiseptic properties |
Answer: Option C
Explanation:
|
| 42. |
Charge on ?-particles is |
| A. |
plus one |
B. |
plus two |
| C. |
minus two |
D. |
minus one |
Answer: Option B
Explanation:
|
| 43. |
?-particle ionizes an atom |
| A. |
through direct collision |
B. |
through electrostatic attraction |
| C. |
through electrostatic repulsion |
D. |
all of above |
Answer: Option C
Explanation:
|
| 44. |
T.V sets and microwave ovens emits |
Answer: Option A
Explanation:
|
| 45. |
A ?-particle in a single encounter |
| A. |
loses a small fraction of its energy |
B. |
losses most of its energy |
| C. |
loses no energy at all |
D. |
loses all of its energy |
Answer: Option B
Explanation:
|
| 46. |
Strontium-90 is used as |
| A. |
?-particle source |
B. |
?-particle source |
| C. |
?-rays source |
D. |
neutron source |
Answer: Option A
Explanation:
|
| 47. |
The penetration power of ?-particle as compared to ?-particle is |
| A. |
10 times more |
B. |
100 times more |
| C. |
100 times less |
D. |
10 times less |
Answer: Option B
Explanation:
|
| 48. |
Geiger counter is suitable for |
| A. |
fast counting |
B. |
extremely fast counting |
| C. |
slow counting |
D. |
all situations |
Answer: Option C
Explanation:
|
| 49. |
A ?-particle can produce fluorescence in |
| A. |
ZnS |
B. |
barium platinocyanide |
| C. |
calcium tungstate |
D. |
all of above |
Answer: Option D
Explanation:
|
| 50. |
Pair production cannot take place in vacuum as ________ is not conserved |
Answer: Option D
Explanation:
|
Read more:
|
|
