InterviewSolution
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InterviewSolution
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A satellite is moving around the Earth with speed v in a circular orbit of radius r. If the orbit radius is decreased by 1% its speed will …….(a) increase by 1% (b) increase by 0.5% (c) decrease by 1% (d) decrease by 0.5% |
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Answer» (b) increase by 0.5% v ∝ \(\frac{1}{\sqrt{r}}\) , % increase in speed = \(\frac{1}{2}\)%decrease in radius = \(\frac{1}{2}\)(1%) = 0.5% |
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