Question

A convex lens can form a magnified erect as well as magnified inverted image of an object placed in front of it "draw ray diagram to justify this statement stating tha position of tha object with respect to the lens in each case

Answer 1

Answer:

a) A convex lens can form a magnified erect image when the object is placed between the optical centre and principal focus of the convex lens.

(b) A convex lens can form a magnified inverted image when the object is placed between focus and the centre of curvature.

Object distance u = -20 cm Nature of the lens = concave lens Focal length f =-10 cm Image distance v = ? According to the lens formula,

V =-6.6 cm

The image is formed at a distance of 6.6 cm from the lens at the same side.

Answer 2

A convex lens can form a magnified erect image when the object is placed betweent eh optical centre and principal focus of the convex lens (i.e., between O and F'). A convex lens can form a magnified inverted image when the object is placed between focus and the centre of curvature ( i.e., between F' and 2F').
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