When white light is dispersed by a spectrometer, the component having the shortest wavelength is
orange
green
violet
red
Explanation
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all you need to know here is the colour pattern known as the "spectrum of white light" which is ROYGBIV . Then note that the wavelength or the velocity (speed) decreases downward. so therefore V "violet" being the least on the spectrum of white light has the shortest wavelength or velocity(speed) .
The correct answer is C. Violet.
When white light is dispersed by a spectrometer or any other dispersive medium, such as a prism, the different wavelengths of light are separated into their component colors, forming a continuous spectrum known as the visible spectrum.
The visible spectrum consists of the following colors arranged in order of decreasing wavelength:
Red, Orange, Yellow, Green, Blue, Indigo, Violet
Among these colors, violet has the shortest wavelength, ranging from approximately 380 nm to 450 nm.
The wavelengths of other colors in the visible spectrum are:
- Red: Approximately 620 nm to 750 nm (longest wavelength)
- Orange: Approximately 585 nm to 620 nm
- Yellow: Approximately 565 nm to 585 nm
- Green: Approximately 500 nm to 565 nm
- Blue: Approximately 450 nm to 500 nm
- Indigo: Approximately 420 nm to 450 nm
Therefore, when white light is dispersed by a spectrometer or any other dispersive medium, the component having the shortest wavelength is violet.
