When an electric bulb breaks, there is an explosive sound. That is due to
A
The chemical reaction between the gases inside the bulb
B
The compressed gases inside rushing out suddenly
C
The air outside rushing in to fill the vacuum inside the bulb
D
None of these
Correct Answer: The air outside rushing in to fill the vacuum inside the bulb
The inside of the bulb being a vacuum, the outside air rushes in when the bulb is broken. The vibrations of the rushing air molecules produce the sound.