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Frequency and Wavelength

We've all heard the word "wave." We've all heard of water waves, sound waves, and other similar phenomena. So, what exactly is a wave? A wave is a disturbance traveling through a medium. We notice ripples when we toss a stone into a calm lake. The wavy movement of water with a high point and a low point is known as ripples. Such waves have unique characteristics. These are comparable to more conceptual waves such as sound and light waves.

When a Slinky's large spring coil is stretched, the individual coils come to a halt. When you continuously vibrate the spring's first coil, the action now spreads throughout the entire length of the structure. A medium is required for a wave to travel. A wave cannot propagate without a channel. Wave medium transmits the wave in the same way as news media delivers the news without producing or being the news.

Waves are only capable of transporting energy and not of transporting substances. The elements in a medium are briefly displaced from their positions when there is a disturbance in the medium that generates a wave.

They are restored to their former media place by a restorative force. The first coil of the slinky wave receives energy from either the person who disrupts it, then transmits that energy to the second coil, but the first coil is restored to its normal energy level. Energy is transmitted from one side to the other in this manner. Will a duck that is resting on the water in a lake with ripples be pushed to the shore simply because it is resting there?

  • Longitudinal Wave: Whenever a particle in a material is opposite to the axis of energy movement. This is the pattern that sound follows as it travels through the air.
  • Transverse Wave: Whenever individual particles in a substance are perpendicular to the axis of energy movement. Wave your hand across a rope, for example.
  • Particles move in a circular pattern on the surface of the water.

Transverse waves require a solid medium to travel. Longitudinal waves may travel through liquids and gases. Electromagnetic waves, on the other hand, may pass through the vacuum.

When we go into frequency and wavelength, there are words to learn about waves. A wave's crest is its highest point, whilst the dip is its lowest. The vertical distance between both the crest as well as its adjoining trough is known as the wave height. The amplitude of a wave is equal to half of its height. It's a metric for how far you've strayed from equilibrium. The duration is the amount of time it takes for consecutive crests or troughs to cross a given point.


A vibrating item generates a sound wave, much as every other wave. A tuning fork or the sound of a human voice. The particles in the medium move back backward and forwards at a certain frequency, irrespective of their source of vibration. When a flow moves through a medium, the word frequency refers to how often the particles vibrate. The overall number of full vibrations per unit time is used to calculate frequency. A wave, for instance, has a frequency of 2000 vibrations per second if it vibrates 10,000 times in 5 seconds. Hertz is the most widely used frequency measurement.

The number of oscillations of a wave every time unit, expressed in hertz, is known as frequency (Hz). Pitch and frequency are closely proportional. Sounds with frequencies ranging from 20 to 20000 Hz may be heard by humans. Ultrasound refers to noises with frequencies higher than those heard by humans, whereas infrasound refers to sounds having frequencies lower than those heard by humans.


The difference between adjacent successive crests and troughs of a wave is measured in wavelength. The space between successive crests or troughs in a low-frequency wave is greater than in a high-frequency wave. So, there is a link involving frequency and wavelength here. The wavelength of a high-frequency wave is shorter. As a result, they are mutually exclusive. Nanometer is the unit used to measure the wavelength of a wave. The Greek letter Lambda represents the wavelength of a wave.

The difference between adjacent closest points in rhythm with one another is known as a wavelength. As a result, a single full wavelength separates two neighboring peaks or troughs on a wave. The symbol lambda (λ) is commonly used to denote the wavelength of a wave.





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