Answer:
82°30'E meridian has been selected as the
standard meridian of India for the following reasons:
(i)
This is a general understanding among the countries of the world to select a
Standard Meridian in multiples of 7°30' east and west of Prime Meridian. It is
equal to half an hour.
(ii)
A country's standard time is derived from such a central meridian. The minimum
difference of time between two consecutive standard meridians should be half an
hour.
(iii)
From Gujarat to Arunachal Pradesh there is a time lag of two hours. Hence, time
along the standard meridian of India (82°30'E) passing through Mirzapur (U.P.)
is taken as the standard time for the whole country.
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