| 1 |
After curie temperature. |
- A. Ferromagnetic
- B. Paramagnetic
- C. Magnetic
- D. Diamagnetic
|
| 2 |
A semiconductor in its extremely pure form is known as: |
- A. Intrinsic
- B. Extrinsic
- C. Both a and b
- D. None of above
|
| 3 |
Which of the following does not undergo plastic deformation. |
- A. Copper
- B. Wrought iron
- C. Head
- D. Glass
|
| 4 |
Which one of the following is crystalline solid. |
- A. Zirconia
- B. Glassy solid
- C. Natural rubber
- D. Poly strene
|
| 5 |
Which one is not a ductile material |
- A. Lead
- B. Steel
- C. Copper
- D. Wrought Iron
|
| 6 |
Yield stress is another name of |
- A. Plasticity
- B. Proportional limit
- C. Elastic limit
- D. Both (b) and (c)
|
| 7 |
The substance which atom cooperates with each other in such a way so as to exhibit a strong magnetic field is called. |
- A. Ferromagnetic
- B. Paramagnetic
- C. Diamagnetic
- D. Non magnetic
|
| 8 |
In glass, molecules are irregularly arranged so it is known as. |
- A. Solid
- B. Liquid
- C. Solid liquid
- D. Gas
|
| 9 |
Semiconductors have conductivity of order: |
- A. 10<sup>-8</sup> to 10<sup>-6</sup> (Ωm)<sup>-1</sup>
- B. 10<sup>-6</sup> to 10<sup>-4</sup> (Ωm)<sup>-1</sup>
- C. 10<sup>2</sup> to 10<sup>5</sup> (Ωm)<sup>-1</sup>
- D. 10<sup>-5</sup> to 10<sup>-7</sup> (Ωm)<sup>-1</sup>
|
| 10 |
A cable breaks if stretched by more than 2mm. It is cut into two equal parts. How much either part can be stretched without breaking? |
- A. 25 m
- B. 1mm
- C. 2mm
- D. 0.5 m
|