Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q5 (IAS/1994) Geography › Maps & Locations › Geographical lines and coordinates Answer Verified

An aeroplane takes off from 30° North Latitude, 50° East Longitude, and lands at the opposite end of the earth. Where does it land ?

Result
Your answer: —  ·  Correct: D
Explanation

The antipode (opposite point on the Earth's surface) of any location is directly opposite through the Earth's center; latitude changes hemisphere (sign) while longitude is shifted by 180° and normalized to the opposite E/W hemisphere [1]. Applying this to 30°N, 50°E: latitude becomes 30°S and longitude becomes 50°E + 180° = 230°, which normalized to the −180…+180° range is 130°W. Therefore the antipodal coordinates are 30°S, 130°W, matching option 4.

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 5: Earths Magnetic Field (Geomagnetic Field) > 5.5. Magnetic Poles > p. 72
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
55%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-I · 2010 · Q81 Relevance score: -4.74

In the month of October 2009, the Indian Air Force in Mumbai airport forced a flight on North American Airlines Boeing 767 to land. Which of the following statements in this respect is/are correct ? 1. It was forced to land, because the Indian Air Force was reported that there was a bomb planted in the plane. 2. The plane was travelling to Bangkok, Thailand from Fujiriah, United Arab Emirates. 3. The plane was carrying US troops. Select the correct answer using the code given below:

CDS-II · 2015 · Q43 Relevance score: -5.15

A brick is thrown vertically from an aircraft flying two kilometres above the earth. The brick will fall with a

IAS · 1998 · Q57 Relevance score: -5.24

When there is noon at G. M .T. meridian people on another place of the Earth are taking their 6 o’clock morning tea. The longitude of the place is

CAPF · 2014 · Q7 Relevance score: -5.35

Statement I : Roaring Forties are strong Westerly winds found in the Southern Hemisphere, generally between the latitudes of 40° and 50° Statement I : The strong East to West air currents are caused by the combination of air being displaced from the Equator towards the South Pole and the Earth’s rotation and there are few landmasses to serve as wind breaks

CAPF · 2010 · Q85 Relevance score: -5.76

Roughly extending from 8 degree north to 38 Degree north latitude and from 68 degree east to 98 degree east longitude the country of India is of great geographical extent and diversities. It sprawls from the snowy ranges of the Himalayas in the north to the shores of the Indian Ocean in the south through the great plains and plateaus in between. It is about 3200 km in length from north (Kashmir) to south (Kanyakumari) and 2900 km from west (Gujarat) to east (Arunachal Pradesh), its vast ness in area and variation in tropographic character and geological structure result in great diversities in climate, vegetation, soil, cropping pattern, human activities and so on across the country. It is often known as a subcontinent. Although the extents of latitude and longitude are same, i.e., 30 degree why is Indiaӳ north-south length longer than the east- west length by 300 km ?