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Q.

On which principle does the bulb horn work?


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a

Principle of mutual induction

b

Principle of sound

c

Multiple reflections of sound

d

Sonar 

answer is C.

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Detailed Solution

The bulb horn works on the principle of multiple reflections of sound.
The bulb horn is a device used to produce a loud sound and to spread the sound produced in every direction. The sound is reflected multiple times inside the passage of the bulb horn, and the echoes overlap each other to produce a loud sound of honking.
 
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