Question

when an object 4cm in size placed in front of concave mirror the height of the image is formed is 6cm what is its magnification

Answer 1

m= height of image / height of object

m=-6/4

m=-3/2

m=-1.5

Answer 2

magnification= h'/h

where h' is height of the image and h is height is the object..

now, putting the values..

=6/4

=1.5

therefore, magnification is 1.5 .