A) 2.8 km/s
B) 15.6 km/s
C) 22.4 km/s
D) 44.8 km/s
Correct Answer: C
Solution :
\[{{v}_{e}}\propto \frac{1}{\sqrt{R}}\]. If R becomes \[\frac{1}{4}\] then \[{{v}_{e}}\] will be 2 times.You need to login to perform this action.
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