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प्रश्न
Explain why are soldiers asked to walk out of step while crossing bridges?
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उत्तर
When the soldiers walk in step, they produce some fixed frequency. If this frequency corresponds to the natural frequency of the bridge, the resonance can take place. This, in turn, will make the bridge to vibrate violently, and hence make it collapse. To avoid such a situation, the soldiers are asked not to march in step.
संबंधित प्रश्न
Define the Resonance phenomenon?
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In following figure shows two tuning forks A and B of the same frequency mounted on two separate sound boxes with their open ends facing each other. The fork A is set into vibration.
- Describe your observation.
- State the principle illustrated by this experiment.
Why are the stringed instruments like guitar provided with a hollow sound box?
When a body vibrates under a periodic force, the vibrations of the body are ______.
Differentiate between the following:
Radio waves and light waves.
What do you mean by resonance? When does resonance occur?
Explain a tuning fork (vibrating) is held close to ear. One hears a faint sound. The same vibrating tuning fork is placed on table, such that its handle is in contact with table, one hears a loud sound.
