Deviation of light as it passes through the atmosphere due to variatio...
The deviation of the light or electromagnetic wave due to the variations in the air density as the function of the height when the light or the wave passes through the atmosphere is known as atmospheric refraction.
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Deviation of light as it passes through the atmosphere due to variatio...
Atmospheric Refraction:
Understanding the Deviation of Light in the Atmosphere
Understanding atmospheric refraction involves recognizing how light behaves as it passes through different mediums, such as air. Here's an explanation of this phenomenon:
What is Atmospheric Refraction?
- Atmospheric refraction is the bending of light as it passes through different layers of the Earth's atmosphere.
- This bending occurs due to the variation in air density, which causes the speed of light to change as it moves through the atmosphere.
Causes of Atmospheric Refraction:
- The main cause of atmospheric refraction is the variation in air density at different altitudes in the atmosphere.
- As light travels from one medium to another with a different density, its speed changes, leading to a change in its direction.
Effects of Atmospheric Refraction:
- Atmospheric refraction can cause objects to appear higher or lower than they actually are, especially near the horizon.
- It also affects the apparent position of celestial objects, such as the sun and stars, leading to phenomena like sunsets and sunrises.
Significance of Atmospheric Refraction:
- Atmospheric refraction plays a crucial role in determining the appearance of the sky and the position of celestial objects.
- It also affects the accuracy of astronomical observations and calculations.
In conclusion, atmospheric refraction is the deviation of light as it passes through the atmosphere due to variations in air density. Understanding this phenomenon is essential for various scientific fields, including astronomy and meteorology.
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