Question

An object of height 5
cm is placed at a distance of 36cm from a concave mirror of focal length 12cm.find the position, nature and size of the image.

Answer 1

h=5cm u=36cm f=12cm

1/f=1/v - 1/u

1/v=1/f + 1/u

=1/36+ 1/12

=1/9

hence, v=9 cm(position)

size= -v/u

=-9/36

=-0.25

nature = real and inverted