The reason for seeing the Sun a little before | vedclass

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(B) The Earth's atmosphere consists of layers of air with varying densities. As sunlight enters the atmosphere from space,it travels from a rarer medi

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Refraction of light

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(B) The Earth's atmosphere consists of layers of air with varying densities. As sunlight enters the atmosphere from space,it travels from a rarer medium to a denser medium,causing it to bend towards the normal. This phenomenon is known as atmospheric refraction.When the Sun is slightly below the horizon,the light rays from the Sun travel through the atmosphere and bend due to refraction. This bending makes the Sun appear to be at a higher position than its actual position. Consequently,an observer on Earth sees the Sun a few minutes before it actually rises above the horizon.

The reason for seeing the Sun a little before the sunrise is:

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