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What is the approximate time difference between India's eastern and western extremes?

Answer and explanation

Correct answer: About 2 hours

Direct answer: C, about two hours. India extends approximately from 68°7′E in the west to 97°25′E in the east, giving a longitudinal difference of about 29 degrees. Earth rotates through 360 degrees in 24 hours, so 15 degrees of longitude corresponds to about one hour, and one degree corresponds to four minutes. Multiplying 29 degrees by four minutes gives about 116 minutes, which is close to two hours. This is the natural local-time difference between the eastern and western extremes. India nevertheless uses one official standard time throughout the country, based on 82°30′E longitude, so clocks do not show this entire difference. A and B are too small, while D is too large. Memory cue: 1° longitude ≈ 4 minutes; 30° ≈ 2 hours.

Related tags

LongitudeTime DifferenceIndia Standard TimeIndia And Its NeighboursIndia LocationGeographyClass 11 Mcq

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