what dominant colour appears for the mercury street bulb
red
The dominant color emitted by a mercury street bulb can vary depending on its specific design and wavelength characteristics. Generally, mercury vapor bulbs produce a bluish-green light when they are first turned on. However, as they warm up and reach full brightness, the color may shift to a more bluish-white or yellowish-white tint. It is important to note that mercury vapor bulbs are being phased out in many places due to their energy inefficiency and environmental concerns.
To determine the dominant color that appears for a mercury street bulb, we need to look at the spectrum of light emitted by the bulb.
Mercury street bulbs emit light in the ultraviolet (UV) range, which is not visible to the human eye. However, they also contain phosphors inside the bulb that convert the UV light into visible light.
The dominant color that appears for a mercury street bulb depends on the specific combination and composition of phosphors used. Typically, these phosphors create a bluish-white light that is similar to daylight. This bluish-white color may also have a slightly greenish or purplish tinge, depending on the specific brand and model of the bulb.
To be absolutely sure about the dominant color of a specific mercury street bulb, you can refer to the specifications or information provided by the manufacturer. Additionally, you can also observe the bulb directly to see the color it emits.