Question:
The sun rises two hours earlier in Arunachal Pradesh as compared to Gujarat in the west but the watches show the same time. How does this happen?
Answer:
The earth in its rotation covers a distance of 1° longitude in 4 minutes. The places located on different longitudes have different local times. To keep a uniform system of time, the world has been divided into 24 times zones.
India has a longitudinal extent of 30 from Arunachal (east) Pradesh to Western Gujarat. It accounts for a time difference of 2 hours. However, to keep standard time across the country, 82½° E, central longitude of India, is selected as standard meridian and local time is IST of the whole country.
India - Size and Location
Q 1.
Which is the southern-most tip of the Indian mainland?
Q 2.
Which latitude and longitude divide India into two halves?
Q 3.
How many coastal states are there in our country? List their names.
Q 4.
Find out the States which do not have an international border or lie on the coast.
Q 5.
Name the island countries which are our southern neighbours.
Q 6.
Why is Indian sub-continent so called?
Q 7.
Name the islands in the Arabian Sea famous for Coral Leaves?
Q 8.
Define 'sub-continent'.
Q 9.
Name the canal that shortened the distance between India and Europe
Q 10.
Name the place in India which is located on three seas.
Q 11.
Why 82°30'E has been selected as the Standard Meridian of India?
Q 12.
Answer the following questions briefly.
(i) Name the group of islands lying in the Arabian sea.
(ii) Name the countries which are larger than India.
(iii) Which island group of India lies to its south-east?
(iv) Which island countries are our southern neighbours?
Q 13.
Name the Union erritories which do not have an international border or lie on the coast.
Q 14.
The central location of India at the head of the Indian Ocean is considered of great significance. Why?
Q 15.
The sun rises two hours earlier in Arunachal Pradesh as compared to Gujarat in the west but the watches show the same time. How does this happen?
Q 16.
How can you say that the land routes of India with other countries are older than her maritime routes?
Q 17.
What is latitude? What is the latitudinal extent of India?
Q 18.
Classify the states into four groups each having common frontiers with
(i) Pakistan,
(ii) China,
(iii) Myanmar, and
(iv) Bangladesh.
Q 19.
Why is the difference between the durations of day and night hardly felt at Kanniyakumari but not so in Kashmir?
Q 20.
How does India occupy an important strategic position in South Asia? Illustrate your answer by explaining three suitable points.
