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What is the special importance of (82^\circ 30'E) longitude for India?

Answer and explanation

Correct answer: It is the basis of Indian Standard Time

The direct answer is A: 82°30′E is the basis of Indian Standard Time. Longitude measures position east or west, while latitude measures position north or south. India uses one standard time for the whole country, and the longitude 82°30′E is its Standard Meridian. Local time changes with longitude, but using one reference meridian prevents different official times in different states. Option A is correct because this meridian is used to determine IST. Option B is wrong because the southernmost latitude is about 8°4′N, not 82°30′E; the symbols also show different coordinates. Option C is wrong because the Tropic of Cancer is a latitude at about 23°30′N. Option D is wrong because the Equator is 0° latitude. Exam cue: E means east longitude, and 82°30′E directly connects with Indian Standard Time.

Related tags

Standard MeridianIndian Standard TimeLongitude

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