If an object is placed 20 cm in front of a convex lens of focal length 7.5 cm then find the position of the image (in cm).

If an object is placed 20 cm in front of a convex lens of focal length

1.	If an object is placed 20 cm in front of a convex lens of focal length 7.5 cm then find the position of the image (in cm).
A.	24
B.	30
C.	12
D.	15
Answer» D. 15

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If an object is placed 20 cm in front of a convex lens of focal length 7.5 cm then find the position of the image (in cm).

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