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Question
Explain in brief the reason for the following :
Delayed sunset
Solution
Delayed sunset
Similary, Sun is seen about two minutes after the actual sunset because of the refraction of sunlight through the atmosphere. Again when Sun is just below the horizon, sunlight enters the Earth's atmosphere obliquely and gets refracted through the different layers of the atmosphere. As a result, sunlight gets bent and reaches the eyes of the observer. Following the path of light rays entering the eyes, the observer sees the Sun again slightly above its actual position. As a result of this, Sun is seen for two minutes even after the actual sunset.
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