The figure below shows an annular ring with outer and inner radii as b and a, respectively. The annular space has been painted in the form of blue colour circles touching the outer and inner periphery of annular space. If maximum n number of circles can be painted, then the unpainted area available in annular space is ______.

Question

TuteeHUB · Accepted Answer

$\pi[(b^2 -a^2) - n(b-a)^2]$

TuteeHUB · Answer

$\pi[(b^2 -a^2) - \frac{n}{4}(b-a)^2]$

TuteeHUB · Answer

$\pi[(b^2 -a^2) + \frac{n}{4}(b-a)^2]$

TuteeHUB · Answer

$\pi[(b^2 -a^2) + n(b-a)^2]$

1.	The figure below shows an annular ring with outer and inner radii as b and a, respectively. The annular space has been painted in the form of blue colour circles touching the outer and inner periphery of annular space. If maximum n number of circles can be painted, then the unpainted area available in annular space is ______.
A.	\(\pi[(b^2 -a^2) - \frac{n}{4}(b-a)^2]\)
B.	\(\pi[(b^2 -a^2) - n(b-a)^2]\)
C.	\(\pi[(b^2 -a^2) + \frac{n}{4}(b-a)^2]\)
D.	\(\pi[(b^2 -a^2) + n(b-a)^2]\)
Answer» B. \(\pi[(b^2 -a^2) - n(b-a)^2]\)

Discussion

No Comment Found

Related MCQs

Reply to Comment