Question

A needle 10cm high is placed at 40cm from a convex lens of focal length 15cm.Find position, nature & size of image.Also draw ray diagram.


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Answer 1

Answer:

When a needle 10 cm high is placed at 40 cm from a convex lens of focal length 15 cm, then, an image is formed at a distance of 40 cm behind the lens. The Image so formed is real, inverted and diminished and of 6cm

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