(i) What is meant by the terms (1) amplitude (2) frequency, of a wave

1.	(i) What is meant by the terms (1) amplitude (2) frequency, of a wave ? (ii) Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
Answer» (i) Amplitude: The maximum displacement on either side of the mean position of the vibrating particle is called amplitude. Frequency: The no. of vibration of particle performed by the wave in one second is called frequency of the wave. (ii) Musical instruments like guitar are provided with a hollow box so that when the strings are set into vibration, forced vibrations are produced in box. Since the box has a large area, it sets a large volume of air into vibration which produces a loud sound of same frequency as that of the string.

(i) What is meant by the terms (1) amplitude (2) frequency, of a wave ? (ii) Explain why stringed musical instruments, like the guitar, are provided with a hollow box.

Answer»

(i) Amplitude: The maximum displacement on either side of the mean position of the vibrating particle is called amplitude.

Frequency: The no. of vibration of particle performed by the wave in one second is called frequency of the wave.

(ii) Musical instruments like guitar are provided with a hollow box so that when the strings are set into vibration, forced vibrations are produced in box. Since the box has a large area, it sets a large volume of air into vibration which produces a loud sound of same frequency as that of the string.

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