why red colour is used in denger signal
Answers
Answer:
red colour travels without deflection from its original path and is the most prominent colour so red is used in danger signals
Answer-
Red light is used as danger signal because it is having high wavelength, less scattering ,hence can travel larger distances.
For understanding wavelength-
Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire. In wireless systems, this length is usually specified in meters (m), centimeters (cm) or millimeters (mm).
Wavelength table
The wavelength of the Electromagnetic waves is inversely proportional to the frequency of the wave. The frequency of the gamma rays is highest whereas the ultraviolet, Infrared and microwaves follow in decreasing order.
Therefore, the decreasing order of wavelengths will be opposite to the frequency order. So, the microwaves have the longest wavelength and the gamma rays have the smallest.