A spherical body of radius R consists of a fluid of constant density and is in equilibrium under its own gravity. If P(r) is the pressure at r(rltR), then the correct option(s) is (are)

A spherical body of radius R consists of a fluid of constant density and is in equilibrium under its own gravity. If P(r) is the pressure at r (r < R), then the correct option(s) is (are)

A spherical black body of radius n radiates power p and its rate of cooling is R. then.

A spherical black body of radius n radiates power p and its rate of cooling is R. then.

A cylinder of radius R full of liquid of density p is rotated about its axis at w rad/s. The increase in pressure at the centre of the cylinder will be

A cylinder of radius R full of liquid of density p is rotated about its axis at w rad/s. The increase in pressure at the centre of the cylinder will be

A body is in equilibrium under the action of three coplanar forces P,Q and R as shown in figure. Select the correct statement.

A body is in equilibrium under the action of three coplanar forces P,Q and R as shown in figure. Select the correct statement.