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प्रश्न
Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
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उत्तर
Stringed instruments are provided with a hollow box so that resonance may take place and a loud sound can be produced.
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संबंधित प्रश्न
In the diagram below, A, B, C, D are four pendulums suspended from the same elastic string PQ. The lengths of A and C are equal to each other, while the length of pendulum B is smaller than that of D. Pendulum A is set into a mode of vibrations.
- Name the type of vibrations taking place in pendulums B and D.
- What is the state of pendulum C?
- State the reason for the type of vibrations in pendulums B and C.
Distinguish between the free (or natural) and forced vibrations.
Why is a loud sound heard at resonance?
Two pendulums C and D are suspended from a wire as shown in the figure give below. Pendulum C is made to oscullate by displaying it from its mean position. It is seen that D also starts oscillating.
(i) Name the type of oscillation, C will execute.
(ii) Name the type of oscillation, D will execute.
(iii) If the length of D is made equal to C then what difference will you notice in the oscillations of D ?
(iv) What is the name of the phenomenon when the length of D is made equal to C ?
Differentiate between the following:
Light and sound waves.
Give two examples of forced vibrations.
When acoustic resonance takes place, a loud sound is heard. Why does this happen? Explain.
Explain why does the rear mirror of a motorbike start Vibrating Violently, at some particular speed of motorbike?
A vibrating tuning fork is placed over the mouth of a burette filled with water. The tap is opened and the water level gradually falls. It is observed that the sound becomes the loudest for a particular length of the air column. What is the name of the phenomenon taking place when this happens? Why does the sound become the loudest?
What do you understand by forced vibrations?
