engineering recuitment ISRO Scientist Mechanical Mock Test Engineering Mathematics Calculus Differentiability
If the area of a circle increases at the rate of \(\frac{1}{\sqrt{\pi}}\) sq. units/sec, then the rate (in units/sec) at which the perimeter of the circle changes, when perimeter is \(\sqrt{\pi}\) units, is
1
2
2
4
3
\(\frac{1}{\sqrt{\pi}}\)
4
\(\sqrt{\pi}\)