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What are the wavelengths of each color of the rainbow?

The colors of the rainbow and their corresponding wavelengths are: Red: 620-750 nm Orange: 590-620 nm Yellow: 570-590 nm Green: 495-570 nm Blue: 450-495 nm Indigo: 420-450 nm Violet: 380-420 nm


Star A emits a continuous spectrum of light that peaks at a wavelength of 450 nm Star B emits a continuous spectrum of light that peaks at a wavelength of 700 nm What is the ratio of the temperature?

Using Wien's displacement law, we can relate the peak wavelength to the temperature of the star. The ratio of their temperatures is approximately 700 nm / 450 nm = 1.56.


The peak intensity of radiation from a star named Sigma is 2 x 106 nm. In what spectral band is thisThe peak intensity of radiation from a star named Sigma is 2 x 106 nm. In what spectral band is this?

The peak intensity of radiation from the star Sigma at 2 x 10^6 nm falls within the infrared spectral band. Specifically, this wavelength is far beyond the visible spectrum, which ranges from approximately 400 nm to 700 nm, and is classified as far-infrared radiation.


What wavelengths of light can the human eye percieve?

The human eye can perceive light wavelengths ranging from approximately 380 nanometers (nm) to about 750 nm. This range encompasses the visible spectrum, which includes colors from violet (shorter wavelengths) to red (longer wavelengths). Beyond this range, ultraviolet light (below 380 nm) and infrared light (above 750 nm) are not visible to the human eye.


Why are Auroras and Northern Lights mostly green in color?

There are pink auroras too! the green wavelength (557.7 nm) is from oxygen; nitrogen gives pink 630.0 nm).