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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? - Science

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?

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Solution

Given:
F length, f = 18 cm
I distance,v = 24 cm
Png these values in lens formula, we get:
1- 1/u = 1/f
o/u = 1/v-1/f
o1/u = 1/24-1/18 =-(1/72)
o =-72 cm
T the object should be placed at a distance of 72 cm from the lens.
N
Mfication, m = v /u = 24/ (-72) =-(1/3)

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APPEARS IN

Lakhmir Singh Class 10 Physics (Science)
Chapter 5 Refraction of Light
Q 17 | Page 247
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