Question

focal length of convex lenses 3 cm find the image distance of object of height 2 cm is placed at 7 cm from lens​

Answer 1

1/v = 1/3 - 1/7

= 7-3/21

v = 21/4

= 5.25cm

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Answer 2

Hence the size of image is 2cm
nature of image is real and inverted..


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