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The mean radius of the earth is , its angular speed on its own axis is  and the acceleration due to gravity at earth’s surface is . The cube of the radius of the orbit of a geostationary satellite will be

a)

b)

c)

d)


Question ID - 54290 :-

The mean radius of the earth is , its angular speed on its own axis is  and the acceleration due to gravity at earth’s surface is . The cube of the radius of the orbit of a geostationary satellite will be

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

Orbital velocity  and

This gives



Next Question :

In a three-digit number, the digit in the units place is 4 times the digit in the hundreds place. If the digits in the units place and tens place are interchanged, the new number so formed is 18 more than the original number. If the digits in the hundreds place is one-third of the digit in the tens place, what is the original number?

 

(a)

268

(b)

276

(c)

269

(d)

278


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