The objects named K,L and M are placed in from of a concave mirror as shown in the figure below correctly shows the images of the objects?

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1 Answer
Feb 28, 2018

D.

Explanation:

Considering, that the object #L# is placed at a distance #2f# where, #f# is the focal length of the concave mirror,

So,you can put this in mirror formula i.e #1/v + 1/u =1/f# you get, #v=-2f# that means the image will be formed at the same distance from the pole of the mirror,at which the object was placed.

So,magnification #= -(v/u) = -1#

that means,the length of the image will be same as that of the mirror.

Now,putting any value more than #2f# for object distance will give you inverted minimized image and for object distance #2f < u < f # magnified image,you can do taking values #3f# and #(3f)/2#

So,image of #K# will be the smallest and that of #M# the largest.