Advertisements
Advertisements
Question
Name the phenomenon involved in tuning your radio set to a particular station and define it.
Solution
The phenomenon involved is resonance. It is a special case of forced vibrations. When the frequency of an externally applied periodic force on a body is equal to its natural frequency, the body rapidly begins to vibrate with an increased amplitude. This phenomenon is known as resonance.
APPEARS IN
RELATED QUESTIONS
In the diagram below, A, B, C, D are four pendulums suspended from the same elastic string PQ. The length 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
1) Name the type of vibrations taking place in pendulums B and D?
2) What is the state of pendulum C?
3) State the reason for the type of vibrations in pendulum B and C.
When a troop crosses a suspension bridge, the soldiers are asked to break steps. Explain the reason.
Why are the stringed instruments like guitar provided with a hollow sound box?
A tuning fork of frequency 256 Hz will resonate with another tuning fork of frequency:
Give two examples of forced vibrations.
When acoustic resonance takes place, a loud sound is heard. Why does this happen? Explain.
Explain why stringed musical instruments, like the guitar, are provided with a hollow box.
State two ways in which resonance differs from forced vibrations.
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.
