Which of the following are true regarding the Prime meridian?
1. It passes through the centre of a certain country
2. It passes through the centre of the Globe
3. It passes through the observatory at Greenwich, near London.
If there are four places on the same meridian 500 km apart and the local time at one place is 12.00 noon, what will be the time at the three other places?
Assume that the moon takes exactly 30 days to complete the cycle and also assume that it rises in the east exactly at 6.48 p.m., on the first day. On the fourth day, at what time will it rise?
Consider the following statements: While it is 6.30 AM (Sunday) in London, it is around
1. 2.30 AM (Sunday) in Honolulu (Hawaii)
2. 8.30 PM (Saturday) in Honolulu (Hawaii)
3. 3.30 PM (Sunday) in Tokyo
4. 1.30 AM (Sunday) in Tokyo
Which of these statements is/are correct?
Which of the following statements regarding the earth's axis are true?
1. It makes an angle of 23.5o with the plane of ecliptic
2. It maintains a flexible orientation with respect to the stars
3. It is the most important fact connected with Earth-Sun relationship
On December 22, the sun:
1. is not visible at north pole
2. is only visible for a few minutes at the Antarctic Circle
3. rises south of east and sets south of west at the Tropic of Cancer
4. rises south of east and set south of west at the equator
Consider a specific point on the surface of the earth (say Delhi). The temperature at a given time of day (say 12.00 Noon) will in general be higher in summer than in winter. This is because ________
Which of the following are true regarding the crust of the earth?
I. It is the outer thin layer with a total thickness of about 100 km
II. It forms around 0.5% of the earth's volume
III. The outer covering of the crust is of sedimentary material
IV. The lower layer of the crust consists of basaltic and ultra-basic rocks