the wavelength (color) of the light would vary depending on the reflected wavelength of the stain. in other words it depends on what kind of stain you are looking for. UV (blacklight) while looking through amber/orange lenses shows most bodily fluids.
The color of the pupil is due to the presence of pigments in the iris of the eye. The concentration and distribution of these pigments determine the color of the pupil, which can range from light blue to dark brown. The pigments help regulate the amount of light entering the eye by adjusting the size of the pupil.
Color vision is made possible by special cells in the retina called cones. These cones are sensitive to different wavelengths of light and allow us to perceive different colors. The brain then processes the signals from these cones to create our perception of color.
Pupils constrict in response to bright light to reduce the amount of light entering the eye and protect the sensitive retina from potential damage. Conversely, pupils dilate in dim lighting conditions to allow more light into the eye for improved vision in low-light environments.
A feather is very light, but theoretically cannot be lifted by something that is equally light or lighter.
Yes, the sun can naturally lighten light brown hair during the summer due to its UV radiation breaking down the hair's pigment molecules. This process can create highlights or give the hair a sun-kissed appearance. It is important to protect hair from sun damage by using products with UV protection.
Blood stains are typically easier to detect using forensic light, as they contain hemoglobin that fluoresces when exposed to certain wavelengths of light. This fluorescence can make blood stains stand out more visibly against different surfaces.
Light can be invisible if its wavelength falls outside the visible spectrum that the human eye can detect. For example, ultraviolet and infrared light are invisible to the naked eye but can still interact with objects and be detected by specialized equipment.
The air is invisible, it reflects no light and therefor has no color.
no.the only light that can do that is a special light used by the crime investigators and the color of that light is a light purple or light green. No that is not true its more of any black light which is a purple light not only do the crime investigators have it you can buy it at any store.
Light is invisible to the human eye because our eyes can only detect a small range of wavelengths within the electromagnetic spectrum, and light falls within a range that is visible to us.
Rod cells do not detect color. They are responsible for detecting low levels of light and are more sensitive to brightness and contrast rather than color. Cone cells, on the other hand, are responsible for detecting color.
Black
Rods in the human eye do not detect color. They are responsible for detecting light and dark, while cones are the cells that detect color. Cones contain three types of pigments that are sensitive to different wavelengths of light, allowing us to perceive color.
Rods are for seeing light and dark, cones are for seeing color.
Red light has the longest wavelength in the visible light spectrum.
Ask a woman they always find the wet spot.
As far as I know... REAL blacklights will detect any trace of a mammal.... hair, urine, vomit, feces, and... sperm!! just make sure the room is as dark as you can get it and shine that light around until something glows!