Physics · Electric Current
When an evacuated electric bulb is broken, there is a loud sound because:
- 1The filament of the bulb reacts chemically with the air
- 2The gas inside the bulb expands suddenly
- 3There is an explosive gas inside the bulb
- 4Air rushes fiercely into the vacuum inside the bulb✓
Correct answer
Air rushes fiercely into the vacuum inside the bulb
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