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Question
Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
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Solution
Stringed instruments are provided with a hollow box so that resonance may take place and a loud sound can be produced.
RELATED QUESTIONS
Differentiate between the forced and resonant vibrations.
In following figure shows A, B , C and D represent test tube each of height 20 cm which are filled with water up to heights of 12 cm, 14 cm, 16cm and 18cm respectively. If a vibrating tuning fork is placed over the mouth if test tube D, a loud sound is heard.

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The diagram below shows three different modes of vibration P, Q and R of the same string of a given length.
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| P | Q | R |
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