Two identical satellites A and B are circulating round the earth … - Vidyadip

MCQ

Two identical satellites $A$ and $B$ are circulating round the earth at the height of $R$ and $2R$ respectively, (where $R$ is radius of the earth). The ratio of kinetic energy of $A$ to that of $B$ is

A
$\frac{1}{2}$
B
$\frac{2}{3}$
C
$2$
✓
$\frac{3}{2}$

✓

Answer

Correct option: D.

$\frac{3}{2}$

d
(d) $\frac{{{K_A}}}{{{K_B}}} = \frac{{{r_B}}}{{{r_A}}} = \left( {\frac{{R + {h_B}}}{{R + {h_A}}}} \right) = \left( {\frac{{R + 2R}}{{R + R}}} \right) = \frac{3}{2}$

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