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What is the basic reason local time at India's eastern extreme is ahead of the western extreme?

Answer and explanation

Correct answer: Because Earth rotates from west to east, the Sun is seen earlier at eastern longitudes

Local time is governed primarily by longitude and Earth’s rotation. Earth rotates from west to east, so places located farther east face the Sun earlier. Consequently, sunrise, apparent noon and other solar-time events occur earlier in eastern India than in western India, making eastern local time ahead. The roughly 30° difference in longitude across India can create nearly two hours of local-time difference, using the rule of about four minutes per degree. Option A states this physical cause correctly. Latitude influences factors such as the altitude of the Sun, seasons and the length of daylight, but it does not explain the east-west local-time difference, so B is wrong. Option C describes the reference meridian for a common national time, not the cause of local time. Proximity to the sea does not make the Sun rise earlier, so D is also incorrect.

Related tags

LongitudeLocal TimeEarth RotationIndia LocationMeridiansAnd Local TimeLongitude Meridians And Local TimeGeographical Coordinates And TimeGeography

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