The sun rotates around itself once in`27` days. If it were to expand to twice its present diameter, what would be its new period of revolution ?

The time period of rotation of the sun about its axis is 27 days. If the sun expands to thrice of its present diameter, what will be its new period of rotation?

If the earth expands suddenly to twice its diamteter, what would be the length of the day ?

The sun rotates round itself once in 27 days. What will be period of revolution if the sun were to expand to twice its present radius? Assume the sun to be a sphere of uniform density.

If earth were to shrink to (1)/(8)th of its present volume, what would be the new length of the day in hour ?

Moon takes nearly 27 days to revolve around earth. If the mass od moon is two-third of its present mass, then what will be the period of revolution of moon around earth. Assume that values of all other things remain unchanged.

The sun rotates about its axis once in 27 days. If it suddenly shrinks to one-eighth of its original volume, mass remaining same, then what will be its new period of rotation?

If the mass of earth were 4 times the present mass, the mass of the moon were half the present mass and the moon were revolving around the earth at twice the present distance, the time period of revolution of the moon would be (Indays)

If the earth suddenly charges its radius x times the present value, the new period of rotation would be

If the mass of earth were 2 times the present mass, the mass of the moon were half the present mass and the moon were revolving round the earth at the same present distance, the time period of revolution of the moon would be (in day)