Pls someone explain me the advance sunrise and delayed sunset?

Question

Answer

The sunrise is advanced due to atmospheric refraction of sunlight. An observer on the earth sees the sun two minutes before the sun reaches the horizon. A ray of sunlight entering the earth’s atmosphere follows a curved path due to atmospheric refraction before reaching the earth.This happens due to a gradual variation in the refractive index of the atmosphere. For the observer on the earth, the apparent position of the sun is slightly higher than the actual position. Hence, the sun is seen before the sun reaches the horizon.Increased atmospheric refraction of sunlight occurs also at the sunset. In this case, the observer on the earth continues to see the setting sun for two minutes after the sun has dipped below the horizon, thus delaying the sunset.

Answer

सूरज की रोशनी के वायुमंडलीय अपवर्तन के कारण सूर्योदय बढ़ गया है। पृथ्वी पर एक पर्यवेक्षक सूरज को क्षितिज तक पहुंचने से दो मिनट पहले सूरज देखता है। पृथ्वी के वायुमंडल में प्रवेश करने वाली सूर्य के प्रकाश की किरण पृथ्वी की ओर पहुंचने से पहले वायुमंडलीय अपवर्तन के चलते एक घुमावदार मार्ग का अनुसरण करता है। यह वातावरण के अपवर्तक सूचकांक में क्रमिक भिन्नता के कारण होता है। पृथ्वी पर पर्यवेक्षक के लिए, सूर्य की स्पष्ट स्थिति वास्तविक स्थिति से थोड़ा अधिक है। इसलिए, सूरज को क्षितिज तक पहुंचने से पहले सूरज देखा जाता है। सूरज की रोशनी में वृद्धि हुई वायुमंडलीय अपवर्तन सूर्यास्त पर भी होता है। इस मामले में, पृथ्वी पर देखे जाने वाला सूर्य क्षितिज के नीचे डूबा हुआ होने के दो मिनट बाद सेटिंग सूर्य को देखना जारी रखता है, जिससे सूर्यास्त में देरी हो रही है।

Answer

Can u pls tell this in hindi so that I can remember it and can learn it fast ?

Answer

Advance Sunrise and Delayed Sunset

Introduction

Advance sunrise and delayed sunset are terms used to describe the phenomenon where the sun rises earlier and sets later than expected. These changes in the timing of sunrise and sunset occur due to various factors such as the tilt of the Earth's axis, the Earth's elliptical orbit around the sun, and the location on the Earth's surface.

Factors influencing advance sunrise

Tilt of the Earth's axis: The Earth's axis is tilted at an angle of approximately 23.5 degrees. As the Earth orbits the sun, this tilt causes the angle at which sunlight reaches different parts of the Earth's surface to change. This tilt leads to variations in the timing of sunrise throughout the year.

Elliptical orbit: The Earth's orbit around the sun is not a perfect circle, but rather an ellipse. This means that the distance between the Earth and the sun varies throughout the year. When the Earth is closer to the sun, it moves faster, leading to an advance in the timing of sunrise.

Location on the Earth's surface: The timing of sunrise also varies based on the latitude and longitude of a particular location. Places closer to the equator experience less variation in the timing of sunrise compared to those closer to the poles.

Factors influencing delayed sunset

Tilt of the Earth's axis: Similar to advance sunrise, the tilt of the Earth's axis also affects the timing of sunset. As the Earth orbits the sun, the angle at which sunlight reaches different parts of the Earth's surface changes, leading to variations in the timing of sunset throughout the year.

Elliptical orbit: Just like in advance sunrise, the Earth's elliptical orbit around the sun also influences the timing of sunset. When the Earth is closer to the sun, it moves faster, causing a delay in the timing of sunset.

Location on the Earth's surface: The latitude and longitude of a particular location also play a role in the timing of sunset. Places closer to the equator experience less variation in the timing of sunset compared to those closer to the poles.

Conclusion

In conclusion, advance sunrise and delayed sunset are phenomena that occur due to the tilt of the Earth's axis, the elliptical orbit of the Earth around the sun, and the location on the Earth's surface. These factors lead to variations in the timing of sunrise and sunset throughout the year and are influenced by the Earth's position in relation to the sun. Understanding these factors helps us comprehend the changes in daylight hours and how they affect different regions of the Earth.

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