Yes, you can use a black light on bed sheets or where-ever and the semen will be visible.
visible light is the only VISIBLE light.
No, it is also observed in case of UV, Xray, Gamma ray.
Only by using a magnetometer. It isn't visible to the eye (which sees light) and it is very weak.
The molecules in the water refracts visible light like a prism and seperates light into the different wavelengths and thus colors creating the rainbow.
The answer is visible light. Visible light is light that can be seen with a naked eye
Visible light is visible (for the human eye), infrared is not. Infrared has a longer wavelength, and a higher frequency. visible light is visible to human i.e the VIBGYOR, above vibgyor are ultravoilet light which is not visible to human eye and below vibgyor are infrared light which is also not visible to human eye.
Yes. visible light is in the electromagnetic spectrum.
exactly what you said its called visible light.
The frequency range of visible light.
No, x-rays are not visible light.
Well, seeing as it seperates visible light, it follows that it only seperates that visible light into the visible spectrum. You can't make radiowaves or UV rays out of visible light.