A) 112 km/s
B) 11.2 km/s
C) 1.12 km/s
D) 3.7 km/s
Correct Answer: A
Solution :
\[\frac{{{v}_{p}}}{{{v}_{e}}}=\sqrt{\frac{{{M}_{p}}}{{{M}_{e}}}\frac{{{R}_{e}}}{{{R}_{p}}}}=\sqrt{(1000)\times \left( \frac{1}{10} \right)}=10\] \[{{v}_{p}}=10\times 11.2=112\ km/s\]
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