# What is resonance give examples Class 11?

The swing has a natural freuqency for swinging back and forth. If the child pulls on the rope at regular intervals and the frequency of the pulls is almost the same as the frequency of swinging the amplitude of the swinging will be large. A swing cannot stop. This is called resonance. Answer.

## What is a resonance in physics?

resonance, in physics, relatively large selective response of an object or a system that vibrates in step or phase, with an externally applied oscillatory force. Resonance was first investigated in acoustical systems such as musical instruments and the human voice.

## What is resonance in physics and examples?

Resonance can occur in any system that has a natural frequency. You probably have experienced a rattle or buzz in your car that only occurs at a certain speed. This is an example of resonance; the tires provide a periodic driving force which changes frequency as you change speed.

## What is resonance and its formula?

The resonant circuit consist of a parallel-connected capacitor and inductor in it. Resonant circuit is mainly used to generate a specific frequency or to consider a specific frequency from the complicated circuit a resonant circuit is being used. The formula of resonant frequency is. f o = 1 2 π L C.

## What is a simple definition of resonance?

Definition of resonance 1a : the quality or state of being resonant. b(1) : a vibration of large amplitude in a mechanical or electrical system caused by a relatively small periodic stimulus of the same or nearly the same period as the natural vibration period of the system.

## What are types of resonance?

• Mechanical Resonance.
• Acoustic Resonance.
• Electrical Resonance.
• Optical Resonance.
• Orbital Resonance.
• Series Resonance.
• Parallel Resonance.

## What is resonance give two examples?

It is a phenomenon when the frequency of an externally applied periodic force on a body is equal to its natural frequency, the body readily begins to vibrate with an increased amplitude. Two examples of resonance are: Sympathetic vibrations of the pendulum, Resonance in radio and TV receivers.

## What is resonance in RLC circuit?

The resonance of a series RLC circuit occurs when the inductive and capacitive reactances are equal in magnitude but cancel each other because they are 180 degrees apart in phase. The sharp minimum in impedance which occurs is useful in tuning applications.

## What is the formula of resonant frequency?

Therefore, the resonant frequency can be derived by expressing the equal value of both capacitive and inductive reactance as follows: XL = X. 2ℼfL = 1/ (2ℼfC) fr = 1/ (2ℼ √LC)

## What is resonance and its application?

Resonance is a very valuable property of reactive AC circuits, employed in a variety of applications. One use for resonance is to establish a condition of stable frequency in circuits designed to produce AC signals.

## What is resonance write its application?

Applications of Resonance A resonant circuit is used as filters. A realistic parallel resonant circuit is used as current rejector. A parallel resonant circuit is used as load impedance in output circuits of RF amplifiers. A parallel resonant circuit can be used in induction heating.

## What is natural frequency and resonance?

Natural vibrations are different from forced vibrations which happen at the frequency of an applied force (forced frequency). If the forced frequency is equal to the natural frequency, the vibrations’ amplitude increases manyfold. This phenomenon is known as resonance.

## What is the unit of resonance frequency?

, in which f is the resonance frequency in hertz, L is the inductance in henries, and C is the capacitance in farads, when standard SI units are used.

## Who discovered resonance?

Resonance is a phenomenon of an increase in the amplitude that occurs when the frequency of the applied force is equal to the natural frequency of the object on which the force acts. Who discovered resonance? Galileo had discovered forced vibration and resonance in the 17th century, though it was misunderstood by him.

## What is resonance frequency denoted by?

A resonant frequency is the natural vibrating frequency of an object and denoted as ‘f’ with a subscript zero (f0).

## What is another word for resonance?

In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for resonance, like: reverberation, resonances, sonority, overtone, fine structure, depth, harmonic motion, excitation, vibration, plangency and pulsation.

## What is the difference between resonance and vibration?

Objects that are free to vibrate have their natural frequencies in which they vibrate when left for a duration of time. Resonance occurs when objects are forced to vibrate at their natural frequency.

## What is resonance factor?

Resonance is defined as the tendency of a system to vibrate with an increase in amplitude at the excitation of frequencies. Resonance frequency or resonant frequency is the maximum frequency at which the amplitude is relatively maximum. The Q factor is used to define the sharpness of the resonance.

## What is resonance in SHM?

Resonance: the large amplitude vibration that results when an oscillator is driven at its natural frequency of vibrations. Damping: a measure of the enery loss per cycle of an oscillator. Period: the time to complete one oscillation. Frequency: the number of oscillations per second.

## What is Q factor in physics?

In physics and engineering, the quality factor or Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is. It is defined as the ratio of the initial energy stored in the resonator to the energy lost in one radian of the cycle of oscillation.

## What are resonance effects?

Definition. Resonance Effect – The polarity induced in a molecule by the interaction of a lone pair of electrons with a pi bond or the interaction of two pi bonds in nearby atoms is known as the resonance effect.

## What are four examples of resonance?

• musical instruments (acoustic resonance).
• Most clocks keep time by mechanical resonance in a balance wheel, pendulum, or quartz crystal.
• Tidal resonance of the Bay of Fundy.
• Orbital resonance as in some moons of the solar system’s gas giants.
• The resonance of the basilar membrane in the ear.

## Why amplitude is maximum at resonance?

Resonance is created by a periodic force driving a harmonic oscillator at its natural frequency. It is said that the device resonates. The less damping a system has, the greater the amplitude of the near resonance forced oscillations.

## Is resonance a permanent effect?

Resonance effect It is a permanent effect that operates in unsaturated molecules and especially in those unsaturated molecules which involve conjugation. Permanent and complete shifting of pi-electron pair of a multiple bonds to one of the bonded atoms or to the adjacent single bond is called resonance effect.

## What is Q factor formula?

The Q factor of the pMUT can be determined by the real part of the impedance frequency spectrum, which is defined as Q = fr/Δf, where the resonance frequency fr is the frequency at which the real part of the impedance reaches its maximum, Δf is the width of the peak at its half height, so-called 3 dB bandwidth.