Advertisements
Advertisements
प्रश्न
The rearview mirror of a motorbike starts vibrating violently at some particular speed of the motorbike. What is the name of the phenomenon taking place? Why does the happen?
Advertisements
उत्तर
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.
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.
संबंधित प्रश्न
Define the resonance phenomenon.
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.
What are mechanical waves?
Distinguish between the free (or natural) and forced vibrations.
Which characteristic of sound makes it possible to recognize a person by his voice without seeing him?
Differentiate between the following:
Radio waves and light waves.
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?
Describe a simple experiment to illustrate the phenomenon of resonance and explain it.
