| 1 |
The most suitable metal for making permanent magnet is. |
- A. Iron
- B. Aluminium
- C. Steel
- D. Copper
|
| 2 |
The number of crystal system are |
- A. Three
- B. Five
- C. Seven
- D. Fifteen
|
| 3 |
Shear modulus is expressed as: |
- A. G = tanθ/F/A
- B. F/A/tanθ
- C. F/tanθ
- D. tanθ/A
|
| 4 |
Example of ductile substance is. |
- A. Glass
- B. Wood
- C. Lead
- D. Oxygen
|
| 5 |
The critical temperature of Aluminum is. |
- A. 3.72 K
- B. 1.18 K
- C. 7.2 K
- D. 8.2 K
|
| 6 |
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
|
| 7 |
Very weak magnetic field produced by brain can be detected by |
- A. MRI
- B. CAT scans
- C. Squid
- D. CRO
|
| 8 |
Which one is not a crystalline solid. |
- A. Zinc
- B. Copper
- C. Nylon
- D. None of these
|
| 9 |
Which one is pentavalent impurity |
- A. Boron
- B. Gallium
- C. Antimony
- D. Indium
|
| 10 |
Substance which break just after the elastic limit is reached are called as. |
- A. Ductile substances
- B. Hard substances
- C. Britto substances
- D. Soft substances
|