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प्रश्न
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.
उत्तर १
This can be stopped by mounting the engine on such a structure, say steel springs that absorb the vibrations of the engine without communicating them to the frame and in this condition, the rearview mirror attached to the frame will not vibrate violently.
उत्तर २
(i) The frame of a motorcycle along with the rearview mirror is found to vibrate violently when it is driven to a particular speed. This happens when the frame has the natural frequency of vibration equal to that of the piston when the engine is driven at that particular speed.
(ii) This phenomenon is called ‘resonance’. In this phenomenon when a body begins with the natural frequency of the others vibrating body B, then A begins to vibrate violently with the maximum amplitude.
(iii) This can be stopped by mounting the engine on such a structure, say steel springs that absorb the vibrations of the engine without communicating them to the frame and in this condition, the rearview mirror attached to the frame will not vibrate violently.
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संबंधित प्रश्न
What are forced vibrations?
Give one example to illustrate forced vibrations.
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.
Name the phenomenon involved in tuning your radio set to a particular station and define it.
When a body vibrates under a periodic force, the vibrations of the body are ______.
Differentiate between the following:
Light and sound waves.
On keeping the stem of a vibrating tuning fork on the surface of a table, a loud sound is heard. Give reason.
State two ways in which resonance differs from forced vibrations.
What do you understand by free (or natural) vibrations?
