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प्रश्न
Describe a simple experiment to illustrate the phenomenon of resonance and explain it.
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उत्तर
Mount two identical tuning forks A and B of same frequency upon two separate sound boxes such that their open ends face each other as shown.
If the prong A is struck on a rubber pad, it starts vibrating. On putting A on its sound box, tuning
fork B also starts vibrating and a loud sound is heard. The vibrations produced in B are due to
resonance.
संबंधित प्रश्न
Name the phenomenon involved in tunning a radio set to a particular station
The diagram above shows a wire stretched over a sonometer. Stems of two vibrating tuning forks A and Bare touched to the wooden box of the sonometer. It is observed that the paper rider (a small piece of paper folded at the centre) present on the wire flies off when the stem of vibrating tuning fork B is touched to the wooden box but the paper just vibrates when the stem of vibrating tuning fork A is touched to the wooden box.
1) Name the phenomenon when the paper rider just vibrates.
2) Name the phenomenon when the paper rider flies off.
3) Why does the paper rider fly off when the stem of tuning fork B is touched to the box?
Give one example to illustrate forced vibrations.
Why is a loud sound heard at resonance?
Why are the stringed instruments like guitar provided with a hollow sound box?
How do you tune your radio set to a particular station ? Name the phenomenon involved in doing so and define it.
Name the phenomenon involved in tuning your radio set to a particular station and define it.
The rearview mirror of a motorbike starts vibrating violently at some particular speed of the motorbike, what could be done to stop the violent vibrations.
What do you understand by free (or natural) vibrations?
