Question

An object is erect image whose size is double the size of object is placed at a distance of 10cm infront of convex lens.Find power of lens​

Answer 1

Explanation:

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Answer 2

Answer:

Explanation:

Given:u= -10cm

(convex lens)

To find: v and image's nature.

Solution: From lens formula

1 V 1 u 1 f

1 1 + 10 AT = 1 20

1 -1 = V 20

v=-20cm

And magnification = V u

Hence image formed is virtual, erect and magnified two times.