Question

At what distance should an object be placed from a convex lens of focal length 18 cm to obtain an image at 24 cm from it on the other side. What will be the magnification produced in this case?

Answer 1

Answer:

Explanation:

Use lenses formula

1/f = 1/v-1/u

1/18=1/24-1/u

U = - 72cm

Magnifications m = v/u =24/(-72)

-. 3

And image formed is inverted -ve sign show that

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Answer 2

Answer:

The approx answer should be 3.33.

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