Q: 10 (IAS/2012)
question_subject:
Geography
question_exam:
IAS
stats:
0,103,65,17,17,103,31
keywords:
{'direction': [0, 0, 0, 3], 'polestar': [0, 0, 0, 2], 'desert': [0, 0, 0, 1], 'village': [3, 1, 4, 12], 'dark night': [0, 0, 0, 2], 'person': [3, 1, 18, 13], 'convenient way': [0, 0, 0, 1]}
The polestar, also known as Polaris, is a star that appears almost directly above the North Pole. Since the star appears fixed in the sky, it can be used as a navigational aid to find direction. In the Northern Hemisphere, if a person is facing the polestar, he or she will be facing North. Therefore, if the person in the desert wants to reach his village, which is situated 5 km east of his current position, he should walk in the direction facing the polestar, which would be North. After walking for 5 km in the North direction, he would have to take a right turn and walk for 5 km in the East direction to reach his village.