If it is Wednesday 10 a.m. at 150 E meridian, then what will be the time at IDL? Select the correct option. (a) Wednesday 6 a.m. (b) Wednesday 9 p.m. (c) Thursday 2 p.m. (d) Thursday 6 p.m.
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ANSWER: b
""International Date Line"" or IDL is an ""imaginary line"" on the Earth's surface which defines the distinction between one day and its successive day.
This line runs from north to south poles and dives the western and eastern sides.
Given: Wednesday 10 a.m. at 15 E meridians.
As we move towards west, we lose 4 minutes for one degree.
Therefore, for 15 , we lose 15 × 4 = 60 minutes, Wednesday 9.00 am.
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