What Color of Light Has the Longest Wavelength

Red light has the longest wavelength. It is at the lower end of the visible spectrum and has a wavelength of about 620-750 nanometers. Blue light has a shorter wavelength and is at the upper end of the visible spectrum with a wavelength of about 450-495 nanometers.

Which color of the light has the longest wavelength? (a) violet (b) red (c) blue (d) green

What Color of Light Has the Longest Wavelength? We all know that different colors of light have different wavelengths. But did you know that some colors have longer wavelengths than others?

In fact, the color with the longest wavelength is red! Red light has a wavelength of around 700 nanometers. That’s pretty long compared to other colors like blue and violet, which have much shorter wavelengths.

So why is red light special? Well, it turns out that our eyes are most sensitive to light in the red part of the spectrum. That’s why we see red objects as being brighter than they really are.

And it also explains why red is the color of stoplights – it’s easier for our brains to process than other colors. So there you have it – if you want to see things in their true colors, look through a red filter!

Which Colour of Light Has the Shortest Wavelength

One of the most important properties of light is its wavelength. Wavelength is the distance between two successive crests or troughs of a wave, and it determines the colour of light. The shorter the wavelength, the higher the energy and frequency of the light, and the bluer the light appears.

Conversely, longer wavelengths appear redder. The visible spectrum is made up of colours that range from violet to red. Violet has the shortest wavelength and highest energy, while red has the longest wavelength and lowest energy.

In between these extremes are blue, green and yellow. White light contains all colours in equal amounts; blacklight is an absence of all colour. So which colour has the shortest wavelength?

It depends on how you define “colour”. If you’re talking about pure spectral colours (like those in a rainbow), then violet definitely has the shortest wavelength. But if you’re talking about “colours” as we see them everyday (like blue sky or green grass), then it’s a bit more complicated.

That’s because our eyes don’t see all wavelengths equally; we’re more sensitive to some than others. Greenish-yellow light, for example, stimulate both our long-wavelength cones (L)  and our middle-wavelength cones (M), while blueish-violet light only activates our short-wavelength cones (S). This means that even though violet light has a shorter wavelength than greenish-yellow light, our eyes perceive greenish-yellow as being “shorter” in wavelength .

So there you have it: whether violet or greenish-yellow has the shortest perceived wavelength depends on how you define “colour”!

Credit: www.amnh.org

What is the Longest Wavelength of Light

The longest wavelength of light is about 1mm. This is because the wavelength is inversely proportional to the frequency, and the highest frequency waves have the shortest wavelengths.

Conclusion

The color of light with the longest wavelength is red. This is because red light has the lowest energy of all the colors on the visible spectrum. Red light waves are also the longest waves in the visible spectrum.