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A star of mass twice the solar mass and ...

A star of mass twice the solar mass and radius `10^(6)` km rotates about its axis with an angular speed of `10^(6) "rad s"^(-1)`. What is the angular speed of the star when it collapses (due to inward gravitational force) to a radius of `10^(4)` km ? Solar mass `1.99 xx 10^(30)` kg.

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SL ARORA-ROTATIONAL MOTION-Problem for self practice
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