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
For the A.P. given by a1, a2,........an,....... with non-zero common difference, the equations satisfied are-...The length of a longest interval in which the function 3sin x - 4sin3 x increasing, is...The lower corner of a leaf in a book is folded over so as to just reach the inner edge of the page. The fraction of widt...The angle made by tangent at the point (2,0) of the curve y = (x − 2) (x − 3) with x- axis is-...Equation of the normal to the curve y = - √x + 2 at the point of its intersection with the curve y = tan (tan-1 x)...