Question

A convex lens forms a real and inverted image of finite size at a
distance of 50 cm from it. Where is the object placed in front of the
lens ? Give all possible positions of the object stating reason in each
case.
Draw labelled ray diagram for any one position of the object
mentioned in (b) above.​

Answer 1

Answer:

There is something wrong with the question as the focal length isn't mentioned which is required to find the object distance using

1/f=1/v - 1/u.

Please correct it and post it again!

Answer 2

the nature of image is real and inverted therefore the image is placed anywhere between focus and infinity on of the lens.

Explanation:

Given:

A convex lens.

Nature of image formed is real, inverted.

The position of image, $i=50\ cm$

Since the nature of image is real and inverted therefore the image is placed anywhere between focus and infinity on of the lens.

Other than this when the image is placed between the focus and the optical center of the lens then the image formed is virtual and erect.

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TOPIC: virtual image

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