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प्रश्न
When a tuning fork, struck by a rubber pad, is held over a length of the air column in a tube, it produces a loud sound for a fixed length of the air column. Name the above phenomenon. How does the frequency of the loud sound compare with that of the tuning fork? State the unit for measuring loudness.
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उत्तर
Resonance frequency of loud sound is either equal to or an integer multiple of the natural frequency of tuning fork. Decibel.
संबंधित प्रश्न
What are mechanical waves?
How does the medium affect the amplitude of free/natural vibrations of a body?
Why are the stringed instruments like guitar provided with a hollow sound box?
Differentiate between the following:
Free and forced vibrations.
Differentiate between the following:
Radio waves and light waves.
Give two examples of forced vibrations.
When acoustic resonance takes place, a loud sound is heard. Why does this happen? Explain.
A string stretched between its ends is made to vibrate by placing the stem of a vibrating tuning fork at its one end. State three ways how you will increase the frequency of note produced by the string.
Explain Why are stringed musical instruments provided with large sound boxes?
What do you understand by forced vibrations?
