Q. 255.0( 2 Votes )
An object is plac
Focal length of convex lens = 18 cm
Object distance u = -27 cm
Image distance =??
We know that lens formula is:
Substituting the values given:
v = 54 cm
Since v is positive it means image is formed behind the lens. So, the image is real.
magnification = -2
Height of image = -2 ×height of object
Thus image formed is twice the size of object but –ve sign indicates that it is inverted.
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