Question

The photograph of a house occupies an area of $1.75c{m}^2$ on a $35mm$ slide. The slide is projected on to a screen, and the area of the house on the screen is $1.55m^2$. What is the linear magnification of the projector-screen arrangement.

Answer 1

$\text{Arial Magnification = Area of image / Area of object}$

$=1.55/1.75\times {10}^4$

$=8857$

$\text{Linear Magnification}=\sqrt{8857}=94.11$