Question

Explain, why stringed musical instruments, like the guitar, are provided with a hollow box?

Answer 1

1. When we play musical instruments like guitar, then there is a string produced in the instrument.
2. The vibration produced in the string of the instrument is forced vibration.
3. Due to the presence of a large area in the instrument, the instrument sets a large volume of air into vibration.
4. Due to the large value of vibration, the instrument produces a loud sound of the same frequency as that of the string.

Hence, for getting a louder sound the stringed musical instruments, like the guitar, are provided with a hollow box to increase the volume of air.