Owing to the equatorial bulge and the polar flattening, the polar radius of the earth falls short of the equatorial radius by about: [NDA 1991]

Related MCQs

• Consider the following statements: 1. Earth is the fourth largest planet of the solar system 2. Earth's circumference is about 45000 km 3. Earth's polar diameter is about 43 km shorter than its equatorial diameter 4. Earth has a total surface area of 510 million sq.km Which of these statements are correct? [NDA 2002]
• Although the equatorial regions have the highest annual average temperatures, the salinity in the oceans is highest near the tropics because: 1. equatorial areas receive heavy rainfall 2. salinity is not affected by temperature 3. equatorial oceans experience a lot of turbulenees 4. high relative humidity in equatorial areas checks evaporation
• 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 the following phenomenon is/are the effect of the rotation of the Earth? [IAS 2003] 1. Apparent movement of the Sun, the Moon and the Stars. 2. Flatness of the poles and bulge at the Equator. 3. Occurrence of' sunrise, noon and sunset 4. Magnetic field of the earth.
• The difference between the equatorial and polar diametres of the earth is about
• The Earth rotates-around an axis pointing towards: [NDA 1991]
• In the earth's atmosphere, the atmospheric pressure: [NDA 1991]
• Consider the following statements regarding the atmosphere of the earth: 1. It is enveloping the earth because of gravity. 2. Its density decreases with increasing height from the surface of the earth. 3. Its characteristic composition is same throughout its height. 4. Amount of pressure it exerts on earth's surface at sea level is called one atm sphere. Which of these statements are correct? [CDS 2001]
• La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino ? 1. La Nina is characterised by un-usually cold ocean temperature in equatorial Indian Ocean whereas El Nino IS characterised by unusually warm ocean temperature in the equatorial Pacific Ocean. 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? [CSAT2011]
• Consider the following statements: 1. On the planet Earth, the fresh water available for use amounts to about less than 1% of the total water found. 2. Of the total fresh water found on the planet Earth, 95% is bound up in polar ice caps and glaciers. Which of the statements given above is/are correct? [IAS 2010]