Question

draw the image formed by a concave mirror if object is placed at the focus of concave mirror

Answer 1

$\bold{\huge{\underline{\underline{Answer}}}}$

The object is placed at $\bold{focus}$ and one ray from object $\bold{parallel}$ to $\bold{principal}$ axis reflect back and pass through the focus of $\bold{concave}$ mirror and the next one go to any point at concave mirror and pass back to $\bold{center}$ of $\bold{carvature}$ the image is formed at $\bold{infinity}$ .

See attachment for figure

$\bold{Thanks}$

Answer 2

Answer:

Explanation:

. A lens having both the spherical surfaces curved

inwards is a concave lens.