MCQOPTIONS
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| 1. |
Why is tungsten used in the incandescent lamp filaments? |
| A. | Tungsten has high melting point |
| B. | Tungsten is less corroding at high temperatures |
| C. | Tungsten is very hard & difficult to break the thin filament |
| D. | Tungsten is an inert element in last column Group 18 periodic table |
| Answer» B. Tungsten is less corroding at high temperatures | |