This Geography quiz on Latitudes, Longitudes and Time puts 12 multiple-choice questions to you, the verified MCQs published with GK24's note on the topic. Every question carries a full explanation of why the correct option is right and why the other options are wrong, so you learn the fact behind the answer rather than the letter. Attempt it right after reading the note, keep to the timer, and use the explanations at the end to mark what needs another look. Sit it again before the exam as a quick revision of the topic.
12 questions with answers and explanations
Indian Standard Time is based on which meridian?
This meridian passes near Mirzapur in Uttar Pradesh and runs roughly through the middle of the country, so it was adopted as the standard meridian of India.
Read the full explanation →One degree of longitude corresponds to how much difference in time?
The earth completes one rotation of 360 degrees in 24 hours, that is 1,440 minutes, and dividing 1,440 by 360 gives four minutes for every degree of longitude.
Read the full explanation →The Tropic of Cancer does not pass through which of the following Indian states?
The Tropic of Cancer passes through eight states, namely Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura and Mizoram.
Read the full explanation →Which is the only parallel of latitude that is a great circle?
A great circle is one whose plane passes through the centre of the sphere and which therefore divides it into two equal halves.
Read the full explanation →The Prime Meridian passes through which place?
The meridian running through it was accepted as the zero meridian, from which all longitudes are counted east and west, and its local time is Greenwich Mean Time, the reference for the world's standard times.
Read the full explanation →The Arctic Circle is drawn at which latitude?
The Arctic Circle marks the latitude beyond which the sun stays above the horizon for the whole of at least one day in midsummer and below it for the whole of at least one day in midwinter, the phenomenon known as the midnight sun and the polar night.
Read the full explanation →The International Date Line broadly follows which meridian?
The line does not follow it exactly: it bends east and west to keep the eastern tip of Siberia, the Aleutian Islands and several Pacific island groups on one side, so that no country is left with two dates at the same moment.
Read the full explanation →If parallels are drawn at an interval of one degree, how many are there in all, including the equator?
There are 90 parallels in the northern hemisphere, 90 in the southern hemisphere and the equator itself, which belongs to neither, making 181 in all.
Read the full explanation →What is the approximate distance between two consecutive parallels of latitude?
The circumference of the earth along a meridian is close to 40,000 kilometres, and dividing that by 360 degrees gives roughly 111 kilometres for one degree of latitude.
Read the full explanation →When it is 12 noon by Indian Standard Time, what is the time at Greenwich?
Indian Standard Time is the local time of 82 degrees 30 minutes east. Multiplying 82.5 degrees by four minutes gives 330 minutes, that is five hours and thirty minutes, and since India lies east of Greenwich its clock is ahead by that much.
Read the full explanation →Which of the following statements about meridians of longitude is correct?
Every meridian runs from the North Pole to the South Pole, so all meridians are semicircles of the same length and all of them converge at the two poles.
Read the full explanation →The standard meridian of India passes close to which town?
The meridian of 82 degrees 30 minutes east passes near this town, and its local time is kept as Indian Standard Time across the whole country.
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