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The mass density of a spherical galaxy varies as

Q. The mass density of a spherical galaxy varies as k /r  over a large distance ‘r’ from its centre. In that region, a small star is in a circular orbit of radius R. Then the period of revolution, T depends on R as                                                                        (JEE-2020)

he mass density of a spherical galaxy varies as k

Aditya Bhatt Answered question 31 January 2024
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