| 1 |
The critical temperature of mercury is. |
- A. 1.18 K
- B. 4.2 K
- C. 3.72 K
- D. 7.2 K
|
| 2 |
Which of the modulus of elasticity is involved in compressing a rod to decrease its length ? |
- A. Young's modulus
- B. Bulk modulus
- C. Modulus of elasticity
- D. None of these
|
| 3 |
A wire stretched to double of its length, its strain is: |
|
| 4 |
Which one of the following is ductile substance. |
- A. Copper
- B. Lead
- C. Wrought iron
- D. All of them
|
| 5 |
The ability of a body to return to its original shape is called. |
- A. Strain
- B. Stress
- C. Elasticity
- D. Plasticity
|
| 6 |
A solid in which there is not regular arrangement of molecules is called. |
- A. Glassy solid
- B. <div>Amorphous solid</div>
- C. Crystalline solid
- D. Both a and b
|
| 7 |
Recentaly a complex crystalline structure known as yttrium barium copper oxide (Yba<sub>2 </sub>Cu<sub>3 </sub>O<sub>3</sub>) have reported to become super conductor at |
- A. 163 K
- B. 169 K
- C. 200 K
- D. 100 K
|
| 8 |
The SI unit of Stress is: |
- A. Nm
- B. Nm<sup>2</sup>
- C. NM<sup>-2</sup>
- D. Nm<sup>3</sup>
|
| 9 |
The unit of strain is: |
- A. Nm
- B. Nm<sup>-2</sup>
- C. no unit
- D. Nm<sup>2</sup>
|
| 10 |
Donor impurities are |
- A. Germanium, silicon
- B. Indium, galium
- C. Antimony, arsenic
- D. Diamond, carbon
|