Question

If the magnification of a body of size 1 m is 2 what is the size of the image

Answer 1

heya...
Hi !

Height of object = h = 1 m

Height of image = h' = ?

Magnification = m = 2


we know that,

m = h'/h
2 = h'/1

h' = 2 m

Height/size of image is 2 metres
tysm.......@kundan

Answer 2

The size of the image is 2 m.

• Magnification: Magnification of a lens is defined as the ratio of height of the image to height of the object.

                    $h_{o} = height of object\\h_{i} = height of image$

                    m = magnification of lens

                   m   = $\frac{h_{i} }{h_{o} }$ ⇒ $h_{i} = mh_{o}$

Given,

         $h_{o}$ = 1 m

         m = 2  

         $h_{i}$ = 2 x 1 = 2 m