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Additionally, the responses addressed the concept of the Tropic of Cancer, which is an important geographical feature related to the Earth's tilt and its influence on the position of the sun relative to different locations.
Here's a summary of the key points from both responses:
1. The Tropic of Cancer:
- The Tropic of Cancer is a parallel of latitude located at approximately 23.5 degrees north of the Equator.
- It marks the northernmost point on Earth where the sun can be directly overhead (at its zenith) at noon during the summer solstice.
- The Tropic of Cancer passes through several countries, including India.
2. Ahmedabad and Kolkata:
- Ahmedabad and Kolkata are both located north of the Tropic of Cancer.
- As the Earth orbits the sun, the sun's position in the sky changes throughout the year. During the summer months, the sun moves northward, reaching its highest point in the sky.
- For Ahmedabad and Kolkata, this means that the sun can be directly overhead (at its zenith) at noon twice a year: once during the summer solstice (around June 21st) and once during the winter solstice (around December 22nd).
3. Delhi:
- Delhi is also located in India, but it is situated further north than Ahmedabad and Kolkata.
- Delhi is not located directly on the Tropic of Cancer, but it is close to it.
- Due to its location, Delhi never experiences the sun directly overhead at noon. The closest it gets is during the summer solstice when the sun reaches its highest point in the sky but remains slightly south of the zenith for Delhi.
In conclusion, Ahmedabad and Kolkata experience the noon sun overhead twice a year because they are located north of the Tropic of Cancer, allowing them to be in the direct path of the sun's highest point during the summer and winter solstices. On the other hand, Delhi does not experience this phenomenon because it is slightly further north and does not lie directly on the Tropic of Cancer.