2,933 km
Explanation
India's geographical dimensions are defined by its latitudinal and longitudinal extent. The distance between the northernmost and southernmost points differs from the distance between the easternmost and westernmost points due to the geodetic nature of the Earth and the specific boundaries of the country.
Detailed Analysis:
- 3,214 km is incorrect: The distance of 3,214 km represents India's North-South extent, stretching from Indira Col in Ladakh to Kanyakumari in Tamil Nadu.
- 2,933 km is correct: The East-West extent of India, measured from the Rann of Kutch in Gujarat to the easternmost point in Arunachal Pradesh (near Kibithu), is approximately 2,933 km. This distance corresponds to a longitudinal spread of roughly 30 degrees.
- 7,516 km is incorrect: The figure 7,516.6 km denotes the total length of India's coastline, including the mainland coast and the island territories of the Andaman and Nicobar Islands and Lakshadweep.
- 15,200 km is incorrect: The figure 15,200 km represents the approximate length of India's total land frontier (boundary shared with neighboring countries).
Key Takeaway:
India's North-South extent (3,214 km) is longer than its East-West extent (2,933 km), despite both spanning approximately 30 degrees of latitude and longitude, because lines of longitude converge towards the poles.