The photograph of a house occupies an area of 1.75 cm2 on a 35 mm slide. The slide is projected onto a screen, and the area of the house on the screen is 1.55 m2. What is the linear magnification of the projector-screen arrangement?

Arealmagnification=SizeofimaeSizeofobject
=1.55m21.75×10-4m2=8857.1
And,linearmagnification=Arealmagnification
=8857.1=94.1