![]() The frequency and wavelength are closely associated with each other, especially in relation to light. The frequency and Wavelength Relationship It is represented by the symbol λ which is read as lambda. Wavelength is usually expressed by the units of nanometres (nm) or micrometres (µm). Wavelength also represents a repeating pattern of any traveling energies, such as light or sound. Wavelength is the distance between two consecutive crests or two consecutive troughs in a transverse wave. A wave which consists of oscillation while moving which occurs perpendicular to the direction of transfer of energy is called transverse waves. It travels in the form of a transverse wave. Light does not travel in a straight light line. On the other hand, waves are the form of energy where electromagnetic radiation takes on when it is propagating. Photons are the light particles which exist in the form of "packets" of electromagnetic energy. ![]() We know that light can be understood both as a particle and a wave. The wavelength is also used for representing repeating pattern of travelling energies, like sound or light. Wavelength is essentially the distance between two consecutive troughs or two consecutive crests in the transverse wave. The wave that is made of oscillation when moving and that occurs perpendicular to direction of energy transfer is known as the transverse waves. Light doesn’t necessarily travel in the straight line but it travels in transverse waves. The study associated with light is called optics, and optics is an important domain in the study of physics. Light exists in the form of particles and propagates in the form of wave. The light exhibits both particle nature and wave nature and the occurrence of this phenomenon is described as light's dual nature. The forms of radiation such as radio waves, gamma rays, microwaves, and X-rays are all different forms of the light. In physics, the definition of light often refers to the electromagnetic radiation having any wavelength, regardless of if it’s visible or not. The visible light like other forms of the electromagnetic radiation moves at this speed specifically in the vacuum. The light speed in the vacuum is 299,792,458 metres per second as per the experiment. The wavelength of the visible light indicates that its frequency is approximately 430-750 terahertz (THz). The wavelengths of the visible light range between 400-700 nanometers, this is between the infrared having longer wavelengths and the ultraviolet having shorter wavelengths. The term essentially refers to the visible light, it is the light that is distinguishable and visible to naked human eye and it is also responsible for the sense of light. Light is the electromagnetic radiation that occurs within a specific section of the electromagnetic spectrum.
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