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What is the approximate time difference between the eastern and western ends of India?

Answer and explanation

Correct answer: About two hours

Local time changes with longitude because different places face the Sun at different moments as Earth rotates. Earth turns through 360 degrees in 24 hours, so a one-degree difference in longitude corresponds to four minutes of local time. India has an east–west extent of about 29 degrees.

Therefore, the approximate difference is 29 × 4 = 116 minutes, which is just under two hours. This is why sunrise and local solar time occur earlier in the east than in the west, even though the whole country follows one standard time. The nearest and accepted choice is option A, about two hours. Ten minutes is far too small, while five or twelve hours greatly overstate the difference.

Related tags

Longitude And TimeIndia Time DifferenceIndian Standard TimeSize And ExtentIndia LocationGeographyClass 11 Mcq

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