Q2 of 61 Page 64

An object of height 2 cm is placed at a distance 20 cm in front of a concave mirror of focal length 12 cm. Find the position, size and nature of the image.

given that

Object height ho = 2 cm


Object distance u = -20cm (left side of mirror)


Focal length f = -12cm (concave mirror)


As we know mirror equation -





V= -30


As we know magnification is



Putting values in formula we get -



hi=3cm



Thus the image is 30cm from pole of mirror , its height will be 3 cm ,its real, inverted and magnified


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