| 1 |
Which element is used to locate the ulcer in brain? |
- A. Iodine-131
- B. Phosphorus-32
- C. Carbon-14
- D. Potassium-40
|
| 2 |
<p class="MsoNormal">a fuse is connected in series with:<o:p></o:p></p> |
- A. <p class="MsoNormal">neutral wire<o:p></o:p></p>
- B. <p class="MsoNormal">live wire<o:p></o:p></p>
- C. <p class="MsoNormal">earth wire<o:p></o:p></p>
- D. <p class="MsoNormal">cable wire<o:p></o:p></p>
|
| 3 |
What happen to the atomic number of an element which emits one alpha particle and a beta particles. |
- A. Increases by 1
- B. Stay the same
- C. Decrease by 2
- D. Decrease by 1
|
| 4 |
The half life of carbon -14 is: |
- A. 5730 years
- B. 5740 years
- C. 5750 years
- D. 5760 years
|
| 5 |
When a heavy nucleus splits into, lighter nuclei, the process would . |
- A. Release nuclear energy
- B. Absorb nuclear energy
- C. Release chemical energy
- D. Absorb chemical energy
|
| 6 |
<p class="MsoNormal">V<sup>2</sup>/R=:<o:p></o:p></p> |
- A. <p class="MsoNormal">Power<o:p></o:p></p>
- B. <p class="MsoNormal">Energy<o:p></o:p></p>
- C. <p class="MsoNormal">Voltage<o:p></o:p></p>
- D. <p class="MsoNormal">Resistance<o:p></o:p></p>
|
| 7 |
The temperature at the centre of sun is. |
- A. 10 million k
- B. 20 million k
- C. 30 million k
- D. 35 million k
|
| 8 |
<p class="MsoNormal">The combined resistance of two identical resistors,
connected in series is 8Ω. Their combined resistance in a parallel arrangement
will be:<o:p></o:p></p> |
- A. <p class="MsoNormal">2 Ω<o:p></o:p></p>
- B. <p class="MsoNormal">4 Ω<o:p></o:p></p>
- C. <p class="MsoNormal">8 Ω<o:p></o:p></p>
- D. <p class="MsoNormal">12 Ω<o:p></o:p></p>
|
| 9 |
Which particles are nucleons? |
- A. Electrons and protons
- B. Protons and neutrons
- C. Electrons and neutrons
- D. Electrons and positrons
|
| 10 |
The half life of argon nuclide Ar-40 is: |
- A. 2 x 10<sup>8 </sup>years
- B. 2 .2x 10<sup>8</sup>years
- C. 2.4x 10<sup>8</sup>years
- D. 2.8x 10<sup>8</sup>years
|
