How much is the Earth’s equatorial radiusgreater than the polar radius?

How much is the Earth’s equatorial radiusgreater than the polar radius? Correct Answer 21 km

In reality, the Earth is not an ideal spherical body, rather it is a flattened sphere with the equatorial radius of 21 km greater than the polar radius. This leads to the perturbations as there is uneven distribution of mass and density.
Bissoy MCQ

Related Questions

Owing to the equatorial bulge and the polar flattening, the polar radius of the earth falls short of the equatorial radius by about ________
The revelations of a satellite photograph of the earth are as follows:
1. the Southern hemisphere bulges slightly more than the Northern hemisphere
2. it is slightly pear shaped ellipsoid of rotation
3. the polar axis of the earth is slightly shorter than the equatorial axis
4. the equatorial circumference is about 40,000km
Which of the above statements are correct ?
Which of these statements are correct?
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2. Earth's circumference is about 45000 km
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4. Earth has a total surface area of 510 million sq.km
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Which two classes use the Shape class correctly?
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পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
The difference between the equatorial and polar diametres of the earth is about
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Equatorial circle is used as a reference in an independent equatorial system.
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2. El Nino has adverse effect on south-west monsoon of India, but La Nina has no effect on monsoon climate.
Which of the statements given above is/are correct?