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For the intents and purposes of this class, the constant for the speed of light, c, always equals 3.00 x 10^8. However, it is important to note that the speed of light is not constant as it moves from medium to medium. When light enters a denser material, the speed and wavelength of light decrease while the frequency stays the same.
Throughout this quarter, and for the purpose of this class, the speed of light will remain a constant equal to 3.0 x 10^8 m.sec^-1, however outside of this setting, it is not so absolute, and actually changes relative to the the mediums it travels through.
Drake Choi_1I wrote:I remember learning in physics something about mediums and light. I know that a vacuum is where light can travel fastest. What is the next fastest medium?
I believe water is the next fastest at about 2.25 x 10^8 m.sec^-1, but we'll mainly be working with light in a vacuum