Question

OA is an object with image size 4 cm and O'A' is the image of the object. Find the image height and nature of the image formed.

• A. 3 cm, erect
• B. 2cm, inverted
• C. 4 cm, inverted
• D. 3cm, inverted

Answer 1

The correct option is B

2cm, inverted

Magnification = $\frac{v}{u}$ = $\frac{h^i}{h}$

$\Rightarrow$ $\frac{+15}{-30}$ = $\frac{h^i}{\left(4\right)}$

$h^i$ = $\frac{-4}{2}$ = - 2 cm

Image height is 2 cm and inverted.