Question

A slide projector has magnification of 10. If a slide of dimension 6 cm square is projected on the screen ,the area of image in the screen is
a. 6 cm square
b. 60 cm square
c. 600 cm square
d. 6000 cm square
Explain.

Answer 1

Magnification is given by:\[m=\frac{ h _{i} }{ h _{o} }=\frac{ w _{i} }{ w _{o} }\]where m is the magnification; hi is the image height; ho is the object height; wi is the image width; and wo is the object width. So both the image height and width are magnified by the same amount. Do you see how to find the answer now?

Answer 2

Do you mean area of slide is 6cm x 6cm , or is it 6 cm² ?
The result will depend on how you interpret this piece of information.

Answer 3

@Kpelletizbhatta
Are you here?