Why is the difference between the duration of day and night hardly felt at Kanyakumari but not so in Kashmir?

The difference in the duration of day and night is hardly felt at Kanyakumari but not so in Kashmir due to the Earth's tilt and its elliptical orbit. Here's a step-by-step explanation:

1. Earth's Tilt: The Earth is tilted at an angle of 23.5 degrees relative to its plane of orbit around the Sun. This tilt - combined with the circular motion of Earth's orbit - means that the Sun's rays don't always hit the Earth at the same angle.

2. Latitude: Kanyakumari is near the equator (8.1 degrees North) while Kashmir is at a higher latitude (approximately 34 degrees North). The equator receives the Sun's rays most directly, and the tilt of the Earth doesn't affect this very much. Therefore, the length of day and night remains fairly constant throughout the year in Kanyakumari.

3. Elliptical Orbit: The Earth's orbit around the Sun is not a perfect circle, but an ellipse. This means that the Earth-Sun distance varies throughout the year. However, this effect is minor compared to the effect of Earth's tilt.

4. Effect on Kashmir: In contrast, places like Kashmir that are at higher latitudes experience significant variation in the length of day and night throughout the year. During the summer, the North Pole is tilted towards the Sun, so places like Kashmir have long days and short nights. In the winter, the North Pole is tilted away from the Sun, so Kashmir has short days and long nights.

In conclusion, the difference in the duration of day and night is hardly felt at Kanyakumari due to its proximity to the equator and the minor effect of Earth's elliptical orbit. However, in Kashmir, the effect of Earth's tilt leads to significant variation in the length of day and night throughout the year.