This type of cable is commonly supplied in ready made DIY telephone extension kits; the type that are plugged in rather than require hard wiring. The reason this cable is so common is that it is very cheap and it is easy to install the connectors on the end.his cable is used for and works well for voice and ADSL as its twisted pair construction provides some resistance to interference. As the CW1308 cable is essentially the same spec cable is used throughout the whole telephone network, it known to work well.
How are visible light waves made? Visible light waves are made when a photon is emitted from a source and has a frequency, or the correct am mount of energy, to create visible light at a specific color.
Answer 1: White light entering a prism is actually made up of many different kinds of light. Lights of different colors have different wavelengths (this is the distance between the peaks of two waves: see here about waves).Our eyes sense the different wavelengths and we see this as color.When white light enters the prism, each kind of light within white light (all the colors) are reflected at different angles because of the different wavelengths.This effectively separates all of the colors present in white light into different bands which we can see as the spectrum.nswer 1: White light entering a prism is actually made up of many different kinds of light. Lights of different colors have different wavelengths (this is the distance between the peaks of two waves: see here about waves).