Explain about advance sunrise and delayed sunset and give reasons?
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HomePhysics ArticleAdvanced Sunrise And Delayed Sunset
Advanced Sunrise And Delayed Sunset
January 2, 2016Leave a Comment
Did you know that we actually see the sunrise about 2 minutes before the sun is actually at that perceived position? Did you know that the sunset that we see is actually of a sun that has, in reality, already set? So why these different perceptions? It is because of a phenomenon termed as refraction of light.
What is refraction of light? Simply put, a ray of light ‘bends’ when it travels from one medium to another. This ‘bending of light’ is called refraction of light. If the light ray travels from a rare medium to a denser medium, it bends towards the imaginary normal and if it travels from a dense medium to a rarer medium, it bends away from the imaginary normal. Depending on the density of the different medium, the speed of the travelling light ray keeps varying, and this causes it to slow down or speed up, therefore bending in the process.

09243500460
HomePhysics ArticleAdvanced Sunrise And Delayed Sunset
Advanced Sunrise And Delayed Sunset
January 2, 2016Leave a Comment
Did you know that we actually see the sunrise about 2 minutes before the sun is actually at that perceived position? Did you know that the sunset that we see is actually of a sun that has, in reality, already set? So why these different perceptions? It is because of a phenomenon termed as refraction of light.
What is refraction of light? Simply put, a ray of light ‘bends’ when it travels from one medium to another. This ‘bending of light’ is called refraction of light. If the light ray travels from a rare medium to a denser medium, it bends towards the imaginary normal and if it travels from a dense medium to a rarer medium, it bends away from the imaginary normal. Depending on the density of the different medium, the speed of the travelling light ray keeps varying, and this causes it to slow down or speed up, therefore bending in the process.
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