Question

1. Explain how wavelength and frequency are important when determining the type of light.
2. What is the relationship between wavelength and frequency of light?

Answer 1

1.Any electromagnetic wave's frequency multiplied by its wavelength equals the speed of light.
2. The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
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Answer 2

1. To find the speed of light as it travels through a medium you use the formula:
v = f x λ
2. The frequency and wavelength of light are inversely proportional. As one value increases the other decreases. You can see this by looking at the formulas:
f = v/λ
λ = v/f
^these formulas are derivatives of the previously mentioned formula.