imp. ques.
Asked by aayushverma
| 23rd Jul, 2008,
05:12: PM
Expert Answer:
Filment of a bulb is not isolated. It is enclosed in a glass chamber / bulb . If a light bulb envelope leaks, the hot tungsten filament reacts with the air, yielding an aerosol of brown tungsten nitride, brown tungsten dioxide, violet-blue tungsten pentoxide and yellow tungsten trioxide which then deposits on the nearby surfaces or the bulb interior.
Answered by
| 29th Jul, 2008,
06:01: AM
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