Two satellites of masses m1 and m2(m1>m2) are revolving round the earth in ci

Question

Two satellites of masses

m_{1}

and

m_{2} (m_{1} > m_{2})

are revolving round the earth in circular orbits of radius

r_{1}

and

r_{2} (r_{1} > r_{2})

respectively. Which of the following statements is true regarding their speeds

v_{1}

and

v_{2}

Options:

A . v1=v2

B . v1

C . v1>v2

D . v1r1=v2r2

Answer: Option B
:
B

v = \sqrt{\frac{G M}{r}} i f r_{1} > r_{2} t h e n v_{1} < v_{2}

Orbit speed of satellite does not depends upon the mass of satellite

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