## What are stationary waves explain the formation of stationary waves graphically?

When two progressive waves of same amplitude and wavelength travelling along a straight line in opposite directions, they superimpose on each other which results in formation of stationary waves. Consider a progressive wave of amplitude a and wavelength λ travelling in the x-axis direction.

## What are standing waves discuss graphical method for formation of standing waves on stretched strings?

As is the case in any situation in which two waves meet while moving along the same medium, interference occurs. The blue wave and the green wave interfere to form a new wave pattern known as the resultant. The resultant in the animation below is shown in black.

## What is the principle that leads the formation of stationary wave?

A standing wave pattern is an interference phenomenon. It is formed as the result of the perfectly timed interference of two waves passing through the same medium.

## What is a stationary wave and when does it form?

A stationary wave is a wave that remains in a constant position. It can arise in a stationary medium as a result of interference between two waves of equal wavelengths, travelling along the same path but in opposite directions. They should have almost same amplitude.

## What are stationary waves write any two characteristics of a stationary wave 2?

Characteristics of Stationary Waves: They move neither forward nor backward. In a stationary wave, the energy is not transported from one point to another. The particles of the medium perform S. H. M. of the same period but the amplitude of the oscillations varies periodically in space.

## What is the difference between progressive wave and stationary wave?

Stationary waves are still, they do not travel in a medium. Progressive waves travel in the medium in different phases. Stationary waves are at rest but they perform simple harmonic motion (SHM) in varying amplitude. Progressive waves, on the other hand, perform simple harmonic motion in its mean position.

## When a stationary wave is formed then its frequency is?

Twice that of the individual waves.

## How is a stationary wave produced when a string is plucked?

Explain how a stationary wave is produced when a string fixed at both ends is plucked. When the string is plucked, waves will travel from the point where it was plucked to the fixed ends, which cannot move and so must be nodes.

## What is the necessary condition for the formation of stationary waves?

The necessary condition for the formation of a stationary wave is that the length of the rope must be an integral multiple of the wave length of the wave. Where ‘n’ is a positive integer.

## What do you understand by stationary waves state their two main characteristics?

Characteristics of Stationary Waves: They are produced due to the interference of two identical progressive waves traveling along the same path but in opposite directions. They move neither forward nor backward. In a stationary wave, the energy is not transported from one point to another.

## How are stationary waves formed 12?

When two progressive wave of the same frequency and amplitude, travelling through a medium with the same speed but in opposite direction superimpose on each other and they give rise to a wave called stationary wave. In stationary wave, it does not seem to be moving and there is no net flow of energy, along the wave.

## What are the characteristics of stationary waves?

A stationary wave does not move in any direction.

• There is no flow of energy.
• All particles in a loop are in the same phase & they are in opposite phase with respect to the adjacent loop.
• ## What causes the formation of stationary waves?

Explain the formation of stationary waves by analytical method. Show the formation of the stationary wave diagramatically. When two progressive waves of same amplitude and wavelength travelling along a straight line in opposite directions, they superimpose on each other which results in formation of stationary waves.

## What is the first harmonic of a stationary wave?

The first harmonic of a stationary wave is the lowest frequency possible for a standing wave to be made. For a string, the length of string must be half a wavelength. The harmonics for a string are shown below: A stationary sound wave can be set up in a glass tube with one open and one closed end.

## How are stationary microwaves produced?

The distance between two nodes is half a wavelength, so: Stationary microwaves can be produced by reflecting microwaves at a metal plate. The reflected wave interferes with the original wave and a stationary wave is made. The nodes and antinodes can be found with a probe.

## Can a stationary wave be produced at resonant frequencies?

A stationary wave can only be produced at resonant frequencies, however there will be more than one for each length of string. These are called harmonics. The first harmonic of a stationary wave is the lowest frequency possible for a standing wave to be made. For a string, the length of string must be half a wavelength.