An object is placed at a distance of 30 cm in front of a convex mirror of focal length 15 cm .find the nature and position of image ?

1 Answer
Feb 18, 2018

The image is real , inverted and of same size as that of object
Image formed at 30cm the same side of object

Explanation:

u = -30 cm
f = -15 cm

#1/f = 1/u + 1/v#

=> #1/v = 1/f - 1/u#

=> # 1/v = 1/-15 - 1/-30# = # -1/15 + 1/30# = #(-2+1)/30#

=> #1/v = -1/30#
=> #v = -30 cm#.

#m = -v/u = -(-30)/-30 = -1#

therefore ,
The image is real , inverted and of same size as that of object