1.

how far should be an object be placed for a convex lens of focal length 20cm to obtain its image at a distance of 30 cm from the lens what will be the height of the image if the object is 6cm tall​

Answer»

ANSWER:

OBJECT distance = 60cm

Magnification =0.5

Explanation:

Use 1/f=1/v+1/u ,all distances in SI system

magnification = -v/u



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