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Dec 7, 2022 · Light has the properties of waves. Like ocean waves, light waves have crests and troughs. The distance between one crest and the next, which is the same as the distance between one trough and the next, is called the wavelength. The frequency of a wave is the number of crests (or troughs) that pass a point in one second.
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- Reflections in a Mirror. In the Mirror, Mirror on the Wall... lesson, students experiment to see how reflective surfaces like mirrors change the direction of light.
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Strategy: Substitute the value for the speed of light in meters per second into Equation 1.1.2 to calculate the wavelength in meters. Solution: From Equation 1.1.2 , we know that the product of the wavelength and the frequency is the speed of the wave, which for electromagnetic radiation is 2.998 × 10 8 m/s: λν = c = 2.998 \times 10^8 m/s.
Light is a type of electromagnetic radiation that can be detected by the eye. It travels as a transverse wave. Unlike a sound waves, light waves do not need a medium to pass through, they can ...
Summary. Light and other forms of electromagnetic radiation move through a vacuum with a constant speed, c, of 2.998 × 10 8 m s −1. This radiation shows wavelike behavior, which can be characterized by a frequency, ν, and a wavelength, λ, such that c = λν. Light is an example of a travelling wave.
The relation between the wavelength λ (Greek lambda) and frequency of a wave ν (Greek nu) is determined by the propagation velocity v, such that. v = νλ v = ν λ. For light, this equation becomes. ν = c λ ν = c λ. where c is the speed of light, 2.998 x 10 8 m/s.
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Visible light wavelength ranges from about 400 400 to 700nm 700 nm with frequencies in the range of 1014 Hz 10 14 Hz. Figure 6.1.3 6.1. 3: A small beam of white light is refracted (bent) as it passes through a glass prism. The shorter the wavelength of light, the greater is the refraction, so the light is separated into all of its colors.
