List of top Mathematics Questions on Surface Area of a Sphere asked in CUET (UG)

The rate of change (in cm2/s) of the total surface area of a hemisphere with respect to the radius r at r = 3.

The surface area (in \(m^2\)) of a sphere of radius 7 cm is :(Use \(\pi= \frac{22}{7}\))

The volume of a spherical balloon is increasing at the rate of \( 6 cm^3/sec\). The rate of change of its surface area when its radius 2 cm is:

Diameter of sphere is 28 cm. Find out its surface area ?