In a group discussion on shape and size of the Earth, three students stated the following points : 1. Student 1 : The shape of the Earth is basically an oblate spheroid. 2. Student 2 : The polar diameter of the Earth is more than the equatorial diameter. 3. Student 3 : Bulge along the equatorial region is due to revolution of the Earth. Who among the above students is/are correct?
- A.Student 1 only
- B.Student 1 and Student 2 only
- C.Student 2 and Student 3 only
- D.Student 1, Student 2 and Student 3
Show answer
The Earth is an oblate spheroid, slightly flattened at the poles and bulging at the equator, but the bulge comes from its rotation, and its polar diameter is the shorter one.
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