A slide projector gives a magnification of 10. If a slide of dimensions 3 cm x 2 cm is projected on the screen, the area of the image on the screen is:
600 cm2
Magnification=area of image / area of object
Area of image = Magnification×area of object
=10 (3 cm × 2 cm)
Area of the image will be:
3 x 10 cm x 2 x 10 cm = 600 cm2