InterviewSolution
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InterviewSolution
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A planet is revolving around a very massive star in a circular orbit of radius r with a period of revolution T. If the gravitational force of attraction between the planet and the star is proportional to `r^(-n),` then `T^(2)` is proportional toA. `R^(3)`B. `R^(-3//2)`C. `R^(-7//2)`D. `R^(5//2)` |
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Answer» Correct Answer - b `T^(2) prop T^(-n+1) prop R^(1-5//2)` `T^(2) prop R^(-3//2)`. |
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