Find the focal length (in cm) and name the lens if on keeping an object at 24 cm in front of it, an inverted image is obtained 12 cm behind it?

Find the focal length (in cm) and name the lens if on keeping an objec

1.	Find the focal length (in cm) and name the lens if on keeping an object at 24 cm in front of it, an inverted image is obtained 12 cm behind it?
A.	f = 16 and the lens is convex
B.	f = 8 and the lens is concave
C.	f = 16 and the lens is concave
D.	f = 8 and the lens is convex
Answer» E.

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Find the focal length (in cm) and name the lens if on keeping an object at 24 cm in front of it, an inverted image is obtained 12 cm behind it?

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