Consider the following places of India : 1. Itanagar 2. Imphal 3. Agartala 4. Aizawl Which one of the following is the correct chronological order of the above places in terms of sunrise time?
- A.3-2-1-4
- B.2-1-4-3
- C.1-4-3-2
- D.4-3-2-1
Correct answer
Explanation
The correct answer is B, 2-1-4-3. The sun rises first in the place farthest east, so the order follows longitude: Imphal, Itanagar, Aizawl and then Agartala.
The Earth rotates from west to east, so places to the east see the sun earlier; every degree of longitude makes a difference of about four minutes. The approximate longitudes are Imphal 93.9° E, Itanagar 93.6° E, Aizawl 92.7° E and Agartala 91.3° E. Imphal therefore sees sunrise first and Agartala, the westernmost of the four, last, roughly ten minutes later. The trap in the question is that Itanagar, the capital of Arunachal Pradesh, sounds as if it should be the easternmost, but Imphal lies slightly east of it.
A is wrong because it puts Agartala, the westernmost city, first.
C is wrong because it places Imphal, the easternmost city, last.
D is wrong because it starts with Aizawl, which lies west of both Imphal and Itanagar.
Exam tip: east to west means earlier to later sunrise; compare longitudes, not how far north-east a state seems.
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