medium of electromagnetic wave changes from air to water their speed what happens
Answers
Answer:
As speed decreases, if change medium of electromagnetic wave from air to water, frequency remains same. As we go from one medium to another the frequency stays same, but the wavelength changes. Change in speed is proportional to change in wavelength.
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Answer:
Electromagnetic wave changes from air to water their speed gets slow down.
Explanation:
An electromagnetic wave's speed changes as it moves from water to air. In a vacuum, light travels at a speed of about 299,792,458 metres per second, but when it passes through a substance like water, it slows down as a result of interactions between the electric and magnetic fields and the atoms and molecules in the medium.
Light travels more slowly in water than it does in air. The water's refractive index, a measurement of how much the speed of light is slowed down in that medium, determines the precise speed. Since water has a refractive index of roughly 1.33, light moves through it at a speed of about 225,000 kilometres per second, which is about 25% slower than in air.
As a result of this change in speed, the wavelength and frequency of the electromagnetic wave also change. The wavelength becomes shorter and the frequency becomes higher as the wave enters water from air.
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