Application of DerivativeHard
Question
The volume of metal in a hollow sphere is constant. If the inner radius is increasing at the rate of 1 cm/sec, then the rate of increase of the outer radius when the radii are 4 cm and 8 cm respectively is -
Options
A.0.75 cm/sec
B.0.25 cm/sec
C.1 cm/sec
D.0.50 cm/sec
More Application of Derivative Questions
If f(x) = ,x ∈ , then...An inverted cone has a depth of 10 cm and a base of radius 5 cm. Water is poured into it at the rate of 3/2 c.c. per min...The abscissa of the point, where the tangent to the curve y2 = 4a { x + a sin (x/a)} is parallel to x- axis is-...The radius of a right circular cylinder of greatest curved surface which can be inscribed in a given right circular cone...The points on the curve 9y2 = x3 where the normal to the curve makes equal intercepts with coordinates axes is-...