Q 12-09-020NEETJEE MainMedium
A convex mirror used as a rear-view mirror has a radius of curvature of $3$ m. A bus is $5$ m behind it. The image is at
Answer: (C) $\dfrac{15}{13}$ m behind the mirror
$f = +1.5$ m, $u = -5$ m: $\dfrac{1}{v} = \dfrac{1}{1.5} + \dfrac{1}{5} = \dfrac{13}{15}$, so $v = \dfrac{15}{13} \approx 1.15$ m behind the mirror (virtual, erect, diminished).
Solution by Sreeraj P, M.Sc Physics