It's not that a particular color has the longest wavelength. The wavelength BECOMES longer when a star moves away from us. Red light has a longer wavelength than blue, for example.
The scale that shows the lightest version of a color to the darkest version is called a value scale. It demonstrates the range of lightness to darkness within a single color by showing various shades and tints from white to black.
The light from distant galaxies shows redshift because the universe is expanding. As the galaxies move away from us, the light they emit gets stretched, causing its wavelength to increase and shift towards the red end of the spectrum. This redshift can help scientists determine the velocity at which galaxies are moving away from us and provide insights into the expansion of the universe.
The frequency of the wave multiplied by the wavelength equals the speed of light. The speed of light, abbreviated "c", is 186,000 miles per second or 300,000 km per second. This is a constant. What's more, according to Einstein's theories of relativity, the is invariant (doesn't change) across all frames of reference.
The red shift shows the velocity with which an object is moving away from the earth. The red shift of an object is correlated to its distance from the earth and so it is also a measure of the distance.
The Earth appears mostly blue from the Moon due to its oceans, but it also shows brown, green, and white areas representing land masses, vegetation, and clouds.
A red shift shows us that a object is moving away, while a blue shift shows us an object is moving toward us. Light that has been 'red shifted' has a longer wavelength when it reaches our eyes/telescopes/etc. than it had when it left the object. Light that has been 'blue shifted' now has a shorter wavelength. The reason stretching the wavelength is known as 'red shifting' is that, in the visible spectrum, red light has the longest wavelength. Blue light has a much shorter wavelength than red so when the wavelength is compressed, we call it blue shifting.
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Radio waves have the longest wavelength among the electromagnetic spectrum, ranging from about 1 millimeter to over 100 kilometers.
Red light shows minimum deviation when passing through a prism due to its longer wavelength.
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The equation that shows how wavelength is related to velocity and frequency is: wavelength = velocity / frequency. This equation is derived from the wave equation, which states that the speed of a wave is equal to its frequency multiplied by its wavelength.
The equation that relates wavelength and frequency is: speed of light = wavelength x frequency. This equation shows that as the frequency of a wave increases, its wavelength decreases, and vice versa.
The equation that shows how frequency is related to velocity and wavelength is: [frequency = \dfrac{velocity}{wavelength}]. This equation illustrates that frequency is inversely proportional to wavelength: as wavelength increases, frequency decreases and vice versa, while velocity remains constant.
Light is made up of different colors that can be seen on the color wheel. The spectrum of the color wheel shows the range of colors that can be created by combining different wavelengths of light. Each color on the color wheel corresponds to a specific wavelength of light, and when these colors are combined, they create new colors.
The equation that shows how wavelength is related to velocity and frequency is: Wavelength (λ) = Velocity (v) / Frequency (f). This equation follows from the basic relationship between velocity, wavelength, and frequency for a wave traveling in a medium.
Millimeter and it shows the wavelength of the laser.
VIBGYOR= Violet, Indigo, Blue, Green, Yellow, Orange, Red, although indigo isn't really used too much anymore. This is the order of increasing wavelength, while the order of increasing frequency (the inverse of wavelength) is the more commonly known order, ROYGBIV.